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: The user's purchase history implies her preferences. Rank the items in the options based on the user's preferences. Output the item that the user is most likely to purchase next from the options.

Input:
Purchase History:
1st: Nikon DSLR Tip Cards Cheat Sheets for D3400 D3300 D3200 D5600 D5500 D5300 D5200 D5100 D7200 D7100 D7000 D810 D800 D610 D600 D750 D700 D300S...
2nd: (2 Pack) EN-EL14 / EN-EL14a Battery and Charger Kit for NIKON DSLR D5300 D5200 D5100 D3300 D3200 D3100, COOLPIX P7800 P7700 P7100 P7000, Nikon DF...
3rd: Nikon WU-1a Wireless Wi-Fi Mobile Adapter with Instructional DVD + Cleaning Kit for Coolpix A, P330, P520, P530, P7800, DF, D3200, D3300, D5200 & D7100...
4th: Fotasy VNS Soft Multi-Color Neck Strap & Cleaning Cloth for Canon Fuji Nikon Olympus Panasonic Pentax Sony Cameras. Electronics. Camera & Photo. Fotasy.
5th: LG Popo Pocket Photo Printer PD239 (White) Bundle with 30-Pack of Inkless Photo Paper for Android, iOS. Electronics. Camera & Photo. LG.

Options:
A: MegaGear ''Ultra Light'' Professional Camera Case Bag with Rain Cover for Canon 5D MK III, 80D, T6, 7D, T5i, Nikon D5600, D500, D750, D810, D7200,...
B: Ashley Furniture Signature Design - Lacey Upholstered Barstool - Curved Back - Set of 2 - Medium Brown Finish. Home & Kitchen. Furniture. Signature Design...
C: Timbuk2 Jones Laptop Backpack. Electronics. Computers & Accessories. Timbuk2.
D: Rothco G.I. Bladder Canteen, Olive Drab. Sports & Outdoors. Outdoor Recreation. Rothco.
E: Edimax EW-7822UAC Wireless AC1200 Dual-Band USB 3.0 Adapter. Electronics. Computers & Accessories. Edimax.
F: Taymor Spa/Bath Chrome Caddy with Pillow. Home & Kitchen. Bath. Taymor Industries.
G: Pendleton Rainier National Park Wool Blanket, Red, Queen Size. Home & Kitchen. Bedding. Pendleton.
H: Frogg Toggs Rana II PVC Bootfoot Hip Wader, Cleated or Felt Outsole. Sports & Outdoors. Sports & Fitness. Frogg Toggs.
I: ASUS K55A-DS51 15.6-Inch Laptop (Mocha) (OLD VERSION). Electronics. Computers & Accessories. Asus.
J: American History: Vintage Map of Native American Tribes - Classroom Poster. Home & Kitchen. Wall Art. PosterEnvy.
K: Kenda Tires Kwest Commuter/Urban/Hybrid Bicycle Tires. Sports & Outdoors. Outdoor Recreation. Kenda Kwest.
L: Channel Master Outdoor Balun Matching Transformer. Electronics. GPS, Finders & Accessories. Channel Master.
M: Valinks HDMI Male to VGA Male D-SUB 15 Pin M/M Connector Cable,  6 Feet, Black. Electronics. Accessories & Supplies. VAlinks.
N: TopOne Universal Cloud lambency flash diffuser + White dome cover and fits all flashes. Electronics. Camera & Photo. TopOne.
O: ASUS X75A-DB32 17.3-Inch Notebook (2.2 GHz Intel Core i3-2328M Processor, 6GB DIMM, 500GB HDD, Windows 8) Black. Electronics. Computers & Accessories. Asus.
P: Coat Rack / Stand In Sandy Black Metal Spiral Design. Home & Kitchen. Furniture. AtHomeMart.
Q: HappyGo Vacuum Insulated Thermos Stainless Steel Travel Mug for Coffee Tea 17 ounce. Home & Kitchen. Kitchen & Dining. HaiGou Electronic.
R: Yodo Fit Over Glasses Sunglasses with Polarized Lenses for Men and Women. Sports & Outdoors. Outdoor Recreation. yodo.
S: OLPC XO Kid's Tablet 7" Screen Protector (XO-780)[3-Pack], iLLumiShield - Japanese Ultra Clear HD Film with Anti-Bubble and Anti-Fingerprint Shield. Electronics. Computers & Accessories. iLLumiShield.
T: Elegant Home Fashions Adriana Corner Floor Cabinet with 1-Shutter Door. Home & Kitchen. Furniture. Elegant Home Fashions.


assistant
Answer: A