Task: Sequential_Recommendation

system
You are a helpful assistant. The assistant first thinks about the reasoning process in the mind by using Belief-Desire-Intention (BDI) framework and then provides the user with the answer. The reasoning process and answer are enclosed within <think> </think> and <answer> </answer> tags, respectively. 
Below is an instruction that describes a task. After thinking, when you finally reach a conclusion based on the customer's intention, desire and belief, clearly state the BDI thinking process within <think> </think> and then the answer within <answer> </answer> tags.


user 
Instruction: Given the products the user has purchased in history, rank the items in the listed options and output the item that the user is most likely to purchase next. Answer from one of the options.

Input:
Purchase History:
1st: XGRIP S&W M&PC fits the M&P Compact Pistol 9mm/.40cal/.357. Installs instantly with no tools. Made in the U.S.A. *Requires an M&P full size magazine of...
2nd: Meprolight Smith & Wesson Tru-Dot Night Sight for M&P 9/40 & 9C/40 full size & compact. Fixed set. Sports & Outdoors. Sports & Fitness. Meprolight.
3rd: OUTBAGS USA NANK15 Nylon Neoprene Ankle Holster. Family owned & operated. Made in USA. Sports & Outdoors. Sports & Fitness. OutBags.
4th: Ultimate Arms Gear 550 lb Paracord Survial Shoulder Harness Strap Sling, Black Over 56' ft Parachute Cord with Swivels for Mossberg 500/590/835/Maverick 88 12/20 Gauge...
5th: Midwest Industries Quick Detach Sling Swivel Heavy Duty Flush Push Button. Sports & Outdoors. Sports & Fitness. Midwest Gloves.
6th: Magpul MAG490-BLK SGA Buttstock Mossberg 500/590/590A1, Black. Sports & Outdoors. Sports & Fitness. Magpul.
7th: Bulldog Cases Tactical Shotgun Case.  Bulldog Cases.

Options:
A: adidas Performance EPP Glider Soccer Ball. Sports & Outdoors. Sports & Fitness. adidas.
B: Ultimate Arms Gear Magpul MAG508 MAG 508 Silicone Cloth. Sports & Outdoors. Sports & Fitness. Ultimate Arms Gear.
C: Barnes Bullets 30745 4th Edition Reloading Manual,. Sports & Outdoors. Sports & Fitness. Barnes Bullets.
D: Midwest Products Large Octagon Stepping Stone Mold, 12-Inch. Home & Kitchen. Kitchen & Dining. Midwest Products.
E: Techni Ice HDR 4 Ply Reusable Ice Packs / Hot Packs (5 Sheets). Sports & Outdoors. Outdoor Recreation. The Insulin Case Shop.
F: Casio Men's FT600WB-5BV. Sports & Outdoors. Outdoor Recreation. Casio.
G: Sports Wrap TR18 Sunglasses for Golf, Fishing, Cycling-Unbreakable (Black & Bronze). Sports & Outdoors. Outdoor Recreation. JiMarti.
H: X Games FS20 Freestyle Bicycle. Sports & Outdoors. Outdoor Recreation. X Games.
I: PCCooler Q101 Super-silent CPU Cooler with 100mm Detachable Fan for Intel & AMD (White). Electronics. Computers & Accessories. TNBEOBRIAQ.
J: 2GB STICK For HP Compaq Desktop 315eu 6000 Pro 6005 Pro Compaq 500B (AMD Models) 505B 4000 Pro 6200 Microtower DIMM DDR3 NON-ECC PC3-10600 1333MHz...
K: Primal Wear Men's Tech Pro Cycling Socks. Sports & Outdoors. Outdoor Recreation. Primal.
L: Samsung In-Ear Headset Headphone Handsfree Earphone Ear Phone EHS44ASSBE / GH59-10443B for Samsung Galaxy Tab 4 7.0, 8.0, 10.1 / Samsung Galaxy Tab Pro 8.4,...
M: CPS Wood Products Bunkie Boards Bed Frame, Twin. Home & Kitchen. Furniture. CPS Wood Products.
N: Motorola MOTOROKR Bluetooth Stereo Headphones. Electronics. Headphones. Motorola.
O: NcSTAR 3X Magnifier w/Flip to Side Quick Release Mount, Black. Sports & Outdoors. Sports & Fitness. NcSTAR.
P: Latest 4 pc Silicone Measuring Cup Set - Lifetime Replacement Warranty - Collapsible for Easy Storage - BPA - Free. Home & Kitchen. Kitchen &...
Q: 2018 Kitchen Linen Calendar Towel with Dowel for Easy Hanging (Bird Menagerie). Home & Kitchen. Kitchen & Dining. Stevens Linens.
R: Moda Flame MFE5035C Chelsea 35" Curved Black Wall Mounted Electric Fireplace. Home & Kitchen. Heating, Cooling & Air Quality. Moda Flame.
S: Select Numero 10 Soccer Ball . Sports & Outdoors. Sports & Fitness. Select.
T: South Shore Vito Headboard Full/Queen , 54/60-Inch, Chocolate. Home & Kitchen. Furniture. South Shore.


assistant
Answer: B