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

Input:
Purchase History:
1st: (Old Model) WD My Passport Ultra 2 TB Portable External USB 3.0 Hard Drive with Auto Backup, Black. Electronics. Computers & Accessories. Western Digital.
2nd: Asus F555LA-AB31 15.6-Inch Laptop (2.1 GHz Core i3-5010U Processor,4 GB RAM,500 GB Hard Drive, Windows 10), Black. Electronics. Computers & Accessories. Asus.

Options:
A: Trijicon TR20-2G AccuPoint 3-9X40Mm Riflescope, 1" Main Tube, Mil-Dot Crosshair Reticle with Green Dot, Matte black. Sports & Outdoors. Sports & Fitness. Trijicon.
B: Arvok 11-12 Inch Laptop Sleeve Multi-color & Size Choices Case/Water-resistant Neoprene Notebook Computer Pocket Tablet Briefcase Carrying Bag/Pouch Skin Cover For Acer/Asus/Dell/Lenovo, Black. Electronics. Computers...
C: Marvel Classic Hulk Candy Bowl Holder. Home & Kitchen. Kitchen & Dining. Rubie's.
D: SRAM Supercork Bicycle Bar Tape. Sports & Outdoors. Outdoor Recreation. SRAM.
E: DVDO AIR3-1 60GHz WirelessHD Adapter for HDMI Cable. Electronics. Accessories & Supplies. DVDO.
F: Mastrad Silicone Slim Spatula - Non-Stick Rubber Spatula - Soft Grip And Slender Design Great For Jars, Blenders, Small Containers and More (Blue). Home &...
G: Gaming Headset for PC Laptop Mac Mobile Phones with Microphone and LED Light by LIHAO (NOSWER I8L). Electronics. Computers & Accessories. LIHAO.
H: Tribeca Living 300 Thread Count Kenya Snake Printed Egyptian Cotton Deep Pocket Sheet, Twin. Home & Kitchen. Bedding. TRIBECA LIVING.
I: Chalier Women's RFID Blocking Zipper Wallet Card Case Purse. Home & Kitchen. Kitchen & Dining. Chalier.
J: Cozy Land Luxurious Super Soft and Plush Throws, Hand-Braided Fringe, Popular Neutral Colors, Large Size, Heavy Weight (CHARCOAL GRAY) PRIME SALES. Home & Kitchen. Bedding...
K: CowboyStudio Dedicated Lens Hood for Nikon AF-S 17-35mm f/2.8D, 16-35mm f/4G Lens (Replaces Nikon HB-23). Electronics. Camera & Photo. CowboyStudio.
L: Butterfly Styled Novelty Bottle Opener. Home & Kitchen. Kitchen & Dining. Wartech.
M: CWK® New Replacement Laptop Notebook Battery for Toshiba Satellite L855-S5210 L855-S5240 L855D-S5220 L855D-S5242 C855-S5115 C855-S5118 L875D-S7332 L875D-S7342 L855-S5119 L855-S5121 C855D-S5353 C855D-S5354 L875D-S7230 L875D-S7232 P855-S5102 P855-S5200...
N: Tactical Tailor Urban Operator Pack, Coyote Brown. Sports & Outdoors. Sports & Fitness. Tactical Tailor.
O: Buffalo MiniStation Extreme USB 3.0 500 GB Rugged Portable Hard Drive (HD-PZ500U3B). Electronics. Computers & Accessories. BUFFALO.
P: Wireless Speakers, Leadsound Crystal Portable mini Speaker with 3.5mm Aux Audio Jack Plug in Clear Bass Micro USB Port Audio Dock for Smart Phone, for...
Q: NCAA Alabama Crimson Tide Ribbon Band Bracelet. Sports & Outdoors. Fan Shop. aminco.
R: Smart Planet EC-37 12-Ounce Eco Glass Coffee Cup, Tapenade. Home & Kitchen. Kitchen & Dining. Smart Planet.
S: FoodSaver FSFRSH0057 FreshSaver Handheld Vacuum-Sealing System. Home & Kitchen. Kitchen & Dining. FoodSaver.
T: 60 Taiyo Yuden Bluray Discs 50 GB Dual Layer Blu-ray BD-R DL 4x Speed Inkjet Printable. Electronics. Accessories & Supplies. Taiyo Yuden.


assistant
Answer: B