Instruction: Rank the items in options and predict the user's next purchase from the listed options by analyzing her historical purchases.

Input:
1st: Green Blob Outdoors Premium Military, Mil Spec Flip Up, Folding, Front and Rear Iron Sights Tactical Set for Picatinny / Weaver Rails Flattop. Sports &...
2nd: InteliScope Pro – Rifle mount to convert a smartphone into a digital multi tool for your firearm – Enhance your shooting experience – Proudly Made...
3rd: UTG Tactical OP Bipod, QD Lever Mount, Height 5.9"-7.3". Sports & Outdoors. Sports & Fitness. UTG.
4th: Vortex Optics Sport Cantilever 30mm Rings. Sports & Outdoors. Sports & Fitness. Vortex Optics.
5th: LMJ-CN® AR15 AR 15 Front and Rear flip up 45 Degree Rapid Transition BUIS Backup Iron Sight. Sports & Outdoors. Sports & Fitness. LMJ-CN.
6th: PRO MP5 G3 GSG5 GSG-5 A5 Claw Rail Scope & Sight Mounts 100% Aluminum Picatinny Tactical. Sports & Outdoors. Sports & Fitness. ABCoutdoor.
7th: Squirrel Daddy Gunsmith Roll Pin Holding Starter Punch Tool Set with Hollow End. Sports & Outdoors. Sports & Fitness. Squirrel Daddy.
8th: PWS Primary Weapons Systems Keymod Harris Bipod Adapter Polymer 5KMHBEA1 Plastic. Sports & Outdoors. Sports & Fitness. PWS.
9th: UTG Shooter's SWAT Bipod, Rubber Feet, Height 6.2"-6.7". Sports & Outdoors. Sports & Fitness. UTG.
10th: Vortex Optics Killflash Anti-Reflection Devices. Sports & Outdoors. Sports & Fitness. Vortex Optics.
11th: Ledsniper® Front and Rear flip up 45 Degree Rapid Transition BUIS Backup Iron Sight. Sports & Outdoors. Sports & Fitness. Ledsniper.
12th: Ade Advanced Optics Quick Flip to Side 90-Degree 30mm/1-Inch Tactical QD Pivot FTS Mount with 1-Inch Inserts for Aimpoint/Eotech/Magnifier/Scope 3x 4x 5x with Standard Screw...
13th: ARMSTAC Tactical Bipod OP-I Aluminium Foldable Adjustable Height fits Picatinny Rail with ARMSTAC. Sports & Outdoors. Sports & Fitness. ARMSTAC.
14th: PC-Armament Comp, Aluminum Trigger Guard, Flat Black. Sports & Outdoors. Sports & Fitness. PC-armament.
15th: 223/5.56 FP Retainers(3)223/5.56. Sports & Outdoors. Sports & Fitness.
16th: Nikon 6729 ProStaff 4-12 x 40 Black Matte Riflescope (BDC). Sports & Outdoors. Sports & Fitness. Nikon.
17th: Emarth 20-60x60AE Waterproof Angled Spotting Scope with Tripod, 45-Degree Angled Eyepiece, Optics Zoom 39-19m/1000m for Target Shooting Bird Watching Hunting Wildlife Scenery. Sports & Outdoors...
18th: GunSkins AR-15 Rifle Skin Camouflage Kit DIY Vinyl Wrap precut Pieces. Sports & Outdoors. Sports & Fitness. GunSkins.
19th: Magpul MBUS PRO Steel Sight Set MAG275 & MAG276 BLACK. Sports & Outdoors. Sports & Fitness. Magpul.
20th: Strike Industries Fang Series Trigger Guard (Coyote Brown). Sports & Outdoors. Sports & Fitness. Strike Industries.
21st: Flex-Hone Rifle Chamber Hone. Sports & Outdoors. Sports & Fitness. Flex-Hone.
22nd: Monstrum Tactical 1.5-4x Tactical Rifle Scope with Range Finder Reticle and One-Piece Offset Mount. Sports & Outdoors. Sports & Fitness. Monstrum Tactical.
23rd: Vortex Optics Strikefire II Red Dot Sight - 4 MOA Red/Green Dot with Vortex Hat. Sports & Outdoors. Sports & Fitness. Vortex Optics.
24th: Vortex Optics Crossfire II Adjustable Objective, 1-inch Tube, Second Focal Plane Riflescopes. Sports & Outdoors. Sports & Fitness. Vortex Optics.
25th: Sightmark LoPro Green Laser Designator Sight. Sports & Outdoors. Sports & Fitness. Sightmark.
26th: UTG Low-Profile Deluxe Universal Picatinny & Swivel-Stud Bipod. Sports & Outdoors. Sports & Fitness. UTG.
27th: Explorer Ranger Double Possible 3 Rifles Weapon Gun Case Padded Long Tactical Carrying Military Backpack Bag YKK Zippers Storage MOLLE Pouches, Integrated 4 Pistol Cases...
28th: Vortex Optics Spitfire Prism Scopes. Sports & Outdoors. Sports & Fitness. Vortex Optics.
29th: NcSTAR VISM 2907 AR & AK Pistol Subgun Gun Case. Sports & Outdoors. Sports & Fitness. NcSTAR.
30th: CHAMPRO TRI-Flex Arm Sleeve. Sports & Outdoors. Fan Shop. CHAMPRO.
31st: Lion Gears Scout-pod Tactical Pro Bipod, 7.3" to 9" Heigth Adjustable, with Adjustable Double Swivel (Side to Side Pivoting and Swivel) and QD Mounting Deck,...
32nd: Vortex Optics Riflescope Bubble Levels. Sports & Outdoors. Sports & Fitness. Vortex Optics.
33rd: Legendary Whitetails Ladies Snowdrift Softshell. Sports & Outdoors. Sports & Fitness. Legendary Whitetails.
34th: Strike Industries Fang Series Trigger Guard (Black). Sports & Outdoors. Sports & Fitness. Strike Industries.
35th: Allen Company Engage Tactical Rifle Case. Sports & Outdoors. Sports & Fitness. Allen Company.
36th: B-Square Bubble Level-Weaver rail. Sports & Outdoors. Sports & Fitness. Safariland.
37th: DPH Arms IMPROVED GAS PLUG REGULATOR BY. Sports & Outdoors. Sports & Fitness. DPH Arms.
38th: EOTECH 512 Holographic Weapon Sight - 1 Dot Speed Ring Reticle. Sports & Outdoors. Sports & Fitness. EOTECH.
39th: Ade Advanced Optics Crusader 8 Reticle Green and Red Dot Reflex Sight with QD Mount, Black. Sports & Outdoors. Sports & Fitness. Ade Advanced Optics.
40th: Warne Scope Mounts Gen 2 Extended Skeletonized 30mm AR Mount. Sports & Outdoors. Sports & Fitness. Warne Scope Mounts.
41st: Aero Precision Ultralight 1" Standard Scope Mount, Anodized Black. Sports & Outdoors. Sports & Fitness. Aero Precision.
42nd: XS Sight Systems ML-0016-5 Ghost Ring WS, Marlin 1895 Integral, Winged Rear. Sports & Outdoors. Sports & Fitness. XS Sight Systems.

Options:
A: Cygolite Hotshot 50 lm USB Rechargeable Bicycle Tail Light. Sports & Outdoors. Outdoor Recreation. Cygolite.
B: Glass Teapot with Infuser 34 oz for Blooming and Loose Leaf Tea. Home & Kitchen. Kitchen & Dining. YEME.
C: Patriot 16GB(2x8GB) Viper III  DDR3 2133 (PC3 17000) CL11 Desktop Memory With Black Mamba Heatsink - PV316G213C1K. Electronics. Computers & Accessories. Patriot.
D: Kinesis Freestyle2 VIP Accessory Features AC820-BLK (Keyboard sold Separately). Electronics. Computers & Accessories. KINESIS.
E: Zoukfox Carrying Case and Storage Bag, Digital Camera Protective Bag with Water Resistant EVA Shockproof for Gopro Hero 4 Hero 3 Hero 3+ (Large). Electronics...
F: GSI Outdoors Glacier Stainless Bottle Cup/Pot, 20 fl oz. Sports & Outdoors. Outdoor Recreation. GSI Outdoors.
G: CJP-Geek AC Adapter Power Supply Charger for BA-301 Inogen One G2 G3 Concentrator. Electronics. Accessories & Supplies. CJP-Geek.
H: Patchwork Multi Soft Area Rug 7'10" x 10'2". Home & Kitchen. Home Dcor. Rugshop.
I: Sig Sauer SOR52001 Romeo5 1x20mm Compact 2 Moa Red Dot Sight, Black. Sports & Outdoors. Sports & Fitness. Sig Sauer.
J: Safety Technology International, Inc.STI-V34150 Wireless Battery Powered Driveway Monitor with Voice Receiver. Electronics. Security & Surveillance. Safety Technology International, Inc.
K: Furnish my Place 5 x 8 Modern Oriental Floral Area Rug Prism Actual 62" x 91" ACH. Home & Kitchen. Home Dcor. Furnish my Place.
L: Valeo Fitness Ball with Soft Vinyl Covering. Sports & Outdoors. Sports & Fitness. Valeo.
M: Star Wars Darth Vader Candle Holder with Lightsaber Candle. Home & Kitchen. Home Dcor. Star Wars.
N: TotalMount Cable Manager for the Echo Plus - Not compatible with the smaller 2nd generation Echo. Electronics. Accessories & Supplies. TotalMount.
O: Eathtek New Laptop Keyboard without Frame For Toshiba C855 S855 S850 C870 C875 Black US Layout. Electronics. Computers & Accessories. Dreammall.
P: Newland Girl's Kids 2 Piece Mermaid Swimwear Swimsuit Bikini Bathing Suit. Sports & Outdoors. Sports & Fitness. Newland.
Q: Sony ICF-CD73W AM/FM/Weather Shower CD Clock Radio - White (Discontinued by Manufacturer). Electronics. Home Audio. Sony.
R: HQRP Replacement AC Adapter/Charger Compatible with Sony HandyCam DCR-TRV210, DCR-TRV230, DCR-TRV240, DCR-TRV250, TRV260, DCR-TRV280 Camcorder with USA Cord & Euro Plug Adapter. Electronics. Computers &...
S: Disposable 9" Paper Chef Tall Hat Set for Home Kitchen, Food Restaurants, Classes (10 Pack). Home & Kitchen. Kitchen & Dining. Super Z Outlet.
T: Intel PWLA8391GT PRO/1000 GT PCI Network Adapter. Electronics. Computers & Accessories. Intel.
Answer: I