Instruction: Rank items in listed options based on the user's purchase history to determine the item that the user is most likely to purchase next. Output the item with the highest likelihood of being the next purchase.

Input:
1st: Ruger Blackhawk Combo air rifle. Sports & Outdoors. Sports & Fitness. Ruger.
2nd: Planet Bike Men's A.R.S. Anatomic Relief Bicycle Saddle. Sports & Outdoors. Outdoor Recreation. Planet Bike.
3rd: Benjamin P50 Cylindrical Pellet .20 Caliber, 500 ct. Sports & Outdoors. Sports & Fitness. Benjamin.
4th: Umarex 2254048 Colt Peacemaker Nickel BB CO2 Pistol. Sports & Outdoors. Sports & Fitness. Umarex.
5th: CatEye Road Mirror. Sports & Outdoors. Outdoor Recreation. CAT EYE.
6th: Tourna Mega Tac Extra Tacky Overgrip, 10-Pack. Sports & Outdoors. Sports & Fitness. Tourna.
7th: RI Novelty Ping Pong Balls - 12 . Sports & Outdoors. Sports & Fitness. Rhode Island Novelty.
8th: Beachbody Autumn Calabrese's 21 Day Fix - Essential Package. Sports & Outdoors. Sports & Fitness. Beachbody.
9th: Copperhead BBs, 1500 and 2500 Count. Sports & Outdoors. Sports & Fitness. Crosman.
10th: Exerpeutic Inversion Table with Comfort Foam Backrest. Sports & Outdoors. Sports & Fitness. Lambow.

Options:
A: Poetic SlimPen Capacitive Stylus for iPhone 4 4S, HTC Thunderbolt, EVO 3D, Atrix, Inspire, Droid 2, Amazon Kindle Fire (BLACK). Electronics. Computers & Accessories. Poetic.
B: Sistema To Go Collection Bento Box for Lunch and Food Storage, Multicolor. Home & Kitchen. Kitchen & Dining. Sistema.
C: TOMTOM VIA 1400M 4.3 Screen With Lifetime Maps (Discontinued by Manufacturer). Electronics. GPS, Finders & Accessories. TomTom.
D: Lock&Lock 51-Fluid Ounce Water Jug with Flip Top Lid, Polypropylene, 6.2-Cup. Home & Kitchen. Kitchen & Dining. LOCK & LOCK.
E: Acer AS5740-6025 15.6-Inch Laptop (Blue). Electronics. Computers & Accessories. Acer.
F: Kuvings Silent Juicer SC Series With Detachable Smart Cap, Silver Pearl. Home & Kitchen. Kitchen & Dining. Kuvings.
G: B-day - 24 Pure Beeswax Birthday Candles, Natural Ivory. Home & Kitchen. Home Dcor. Santa Fe Beeswax Candles.
H: (6 Pack) Set of 6 Heavy Canvas Large Tote Bag with Zippered Closure (Navy). Home & Kitchen. Kitchen & Dining. ToteBagFactory.
I: Achim Home Furnishings Morning Star Mini Blinds, 20 by 64-Inch, White. Home & Kitchen. Home Dcor. Achim Home Furnishings.
J: Philips 40PFL5705D/F7 40-Inch 1080p 240 Hz LCD HDTV with NetTV, Black. Electronics. Television & Video. Philips.
K: Mr Shield For LG G Pad 10.1 (V700) Premium Clear [3-pack] Screen Protector with Lifetime Replacement Warranty. Electronics. Computers & Accessories. Mr Shield.
L: Car Air Purifier, Crenova Ionic Car Air Freshener Air Purifier and Car Air Cleaner with Double USB, Remove Dust, Pollen, Smoke, Bacterial and Bad Odors...
M: Tek Republic TUA-300 USB 3.0 to HDMI / DVI Adapter for PC & Mac up to 2560x1440/ 1920 x 1200. Electronics. Accessories & Supplies. Tek...
N: I'EXCEL 8 Replacement Ear Hook Compatible with Samsung Hm1300 Hm1900 Hm3300 Hm6000 for Bluetooth Headsets- Clear. Electronics. Headphones. I'EXCEL.
O: Sanyo GXBD LCD TV Remote Control for DP46819, DP46848, DP50719, DP50747, DP52848, DP32746, DP42746, DP37647, DP26647. Electronics. Accessories & Supplies. Sanyo.
P: Sony DVPNS725P Progressive-Scan DVD/CD Player. Electronics. Television & Video. Sony.
Q: Vargo Titanium Water Bottle with Titanium Lid. Sports & Outdoors. Sports & Fitness. Vargo.
R: Orange Adult Explorer Snorkel Vests (2 Pack) -New Updated Version with D-Rings and Comfort Straps. Sports & Outdoors. Outdoor Recreation.
S: OU-BAND Key Finder Bluetooth 4.0 Anti-lost Tracker Two-way anti lost, Key & Cell Phone Finder, Kids & Pets Anti-lost, Voice Recording, Selfie Shutter for iPhone...
T: Panasonic MC-CG917 "OptiFlow" Bag Canister Vacuum Cleaner - Corded. Home & Kitchen. Vacuums & Floor Care. Panasonic.
Answer: R