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: Based on the user's historical purchases, rank the items in options and predict the next product of the user's interest from the provided options.

Input:
Purchase History:
1st: Shock Doctor Knee Brace Compression Sleeve Support (1 Unit). Helps Pain / Healing from Arthritis, Bursitis, Tendonitis, Meniscus Tear, Patella Alignment and more. For Basketball,...
2nd: Vista Traveler Takedown Case, Black, 37-Inch. Sports & Outdoors. Sports & Fitness. Vista.

Options:
A: Cactus V6 Flash Remote, Black. Electronics. Camera & Photo. Cactus.
B: Wireless WiFi Bluetooth Adapter USB WiFi Dongle Network Adapter 150Mbps & Bluetooth Transmitter Receiver for Desktop/Laptop/PC, Supports Windows 7/8/8.1/10/XP/Vista. Electronics. Computers & Accessories. iFun4U.
C: Acrylic Universal Cosmetic Organizer. Home & Kitchen. Bath. US Acrylic.
D: ioHOMES Knox 2-Doors Buffet, Black. Home & Kitchen. Furniture. HOMES: Inside + Out.
E: Party Wine Glass Marker Set, No Smearing and Fast Dry. Ideal Food Grade Ink for Tagging Glassware and Ceramics (Similar to Wine Charms)!. Home &...
F: Paula Deen Signature Dinnerware Amaryllis Holiday 16-Piece Dinnerware Set. Home & Kitchen. Kitchen & Dining. Paula Deen.
G: Pinboard Desk with Hutch & Chair. Home & Kitchen. Furniture. KidKraft.
H: 802.11g 54Mbps Wireless LAN PCI Adapter. Electronics. Computers & Accessories. ZONET Networking.
I: Samsung M378T5663EH3-CF7 4GB 2 x 2GB PC2-6400U DDR2 800 NonECC Unbuff Memory Kit. Electronics. Computers & Accessories. Samsung.
J: Insulated Cooler Bag. Sports & Outdoors. Outdoor Recreation. Ensign Peak.
K: Casio Men's FT500WVB-5BV. Sports & Outdoors. Outdoor Recreation. Casio.
L: AU OPTRONICS B140XW01 V.6 & V.4 Replacement LAPTOP LCD SCREEN 14.0" WXGA HD LED (or compatible model). Electronics. Computers & Accessories. Generic.
M: Safavieh Madison Collection Cream and Light Grey Bohemian Chic Paisley Area Rug (4' x 6'). Home & Kitchen. Home Dcor. Safavieh.
N: 20" Long 3D Santa "Merry Christmas" Stockings. Home & Kitchen. Seasonal Dcor.
O: Cereal on the Go (Colors May Vary) No Spill No Mess - Freeze Gel Travel Food Storage Snack Container Keeper !!. Home & Kitchen. Kitchen...
P: Hikvision WM110 (DS-1258ZJ) Indoor Wall Mount Bracket for Mini Dome or Dome Cameras. Electronics. Security & Surveillance. Hikvision.
Q: AMS 42140 Bowfishing Crossbow Bolt with Chaos Point, Yellow. Sports & Outdoors. Sports & Fitness. AMSBowfishing.
R: Susan-star Red and Green Reflex Sight Dot with 4 Reticles 20mm Rail. Sports & Outdoors. Sports & Fitness. Susan-star.
S: 24X36 1/8" White Foam Core Backings. Home & Kitchen. Home Dcor. CountryArtHouse.
T: Griffin Reflect Case for iPod touch 1G (Chrome). Electronics. Portable Audio & Video. Griffin Technology.


assistant
Answer: K