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: KVAGO iPad Pro 9.7 Keyboard Case, Stylish 7 Colors Backlit Wireless Bluetooth Keyboard Hard Shell Case Protective Cover Apple iPad Pro 9.7 inch (NOT 2017...
2nd: Samsung Gear Fit Smart Watch, Black (International Version). Electronics. Wearable Technology. Samsung.

Options:
A: Perkin Knives - Custom Handmade Damascus Hunting Knife - Natural Bone & Micarat Handle. Sports & Outdoors. Sports & Fitness. Perkin Knives.
B: XSPC Wire Sensor 10K. Electronics. Computers & Accessories. XSPC.
C: MAYTEX Mills Metal Double Roller Glide Ring, Chrome, Set of 12 Shower Curtain Hooks. Home & Kitchen. Bath. MAYTEX.
D: WD 1TB Silver My Passport for Mac Portable  External Hard Drive  - USB 3.0  - WDBLUZ0010BSL-NESN. Electronics. Computers & Accessories. Western Digital.
E: H2O  Wood Coat Rack,  Free Standing with 9 Wood Hangers, 72-Inch, Walnut. Home & Kitchen. Furniture. Home to Office Solutions.
F: DHP Bentwood Chrome Legs, Set of 4 Chrome Legs. DHP Bentwood Table top Sold Seperately. Home & Kitchen. Furniture. DHP.
G: Leegoal Gold Plated DVI-I Dual-Link 24+5 Male to HDMI Female Adapter. Electronics. Accessories & Supplies. Generic.
H: Farberware Insulated Bakeware 15.5" x 10.5" Jelly Roll. Home & Kitchen. Kitchen & Dining. Farberware.
I: Collapsible Fabric Hat Box (Black Large). Home & Kitchen. Storage & Organization. Maxi.
J: Tobey Canvas Messenger Sling Body Bag Backpack Sport Day Hiking Bag Four Color Available. Sports & Outdoors. Outdoor Recreation. Generic.
K: 12 Liquor Bottle Universal Pour Spout Dust Cap Cover (Clear). Home & Kitchen. Kitchen & Dining. KOVE.
L: Decopolitan Urn Holdback Pair for Draperies, 1-Inch, Antique Black. Home & Kitchen. Home Dcor. Decopolitan.
M: Sterno Home Candle Impressions 4-Inch Smooth Flameless Candle with Vanilla Fragrance, White. Home & Kitchen. Home Dcor. Sterno Home.
N: JETech Bluetooth Keyboard Case for Apple iPad Air 2, 360 Degree Rotation, Multi-Angel Stand. Electronics. Computers & Accessories. JETech.
O: Wilton Petite Loaf Baking Cups, White (415-450). Home & Kitchen. Kitchen & Dining. Wilton.
P: Modern Canvas Painting Wall Art The Picture For Home Decoration Idyllic Scenic - Sunflower Field On Sunset With Dramatic Cloudscape Flower Sunflower Print On Canvas...
Q: JUSTING@Black & White Chevron Pattern Hybrid Hard Case for Apple Ipod Touch 4, 4th Generation with Free Screen Protector+Stylus Pen (black). Electronics. Portable Audio &...
R: Magnolia Organics Blanket - Full/Queen, Natural. Home & Kitchen. Bedding. Magnolia Organics.
S: Triple K Shotgun Sling, Tan. Sports & Outdoors. Sports & Fitness. TRIPLE K.
T: H8O Polycarbonate 3 gallon Tall Water Bottle (with Handle) with 48mm Cap. Home & Kitchen. Kitchen & Dining. H8O.


assistant
Answer: D