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: C2G/Cables to Go Audio Unlimited Premium 900MHz Wireless Indoor/Outdoor 2 Speaker System with Remote and Dual Power Transmitter, Black (SPK-VELO-003). Electronics. Portable Audio & Video...
2nd: TUPEYA Card Reader. Electronics. Computers & Accessories. TUPEYA.

Options:
A: Supcase (TM) PU Leather Case for HP TouchPad Touchscreen Tablet With 3-in-1 Built-in Stand (Black). Electronics. Computers & Accessories. SUPCASE.
B: Oumers Long Thumbscrew with Cap Thumb Screw Set Stainless for GoPro Accessories Monopod Handhold Stick Mount/Windshield Suction for Gopro Hero5 Black, Hero4, Hero3+, Hero3, Hero2...
C: My Weigh Ultraship 75 Lb Electronic Digital Shipping Postal Kitchen Scale  (ultra-75). Home & Kitchen. Kitchen & Dining. My Weigh.
D: niceEshop Creative Fashion Cotton Linen Square Decorative Throw Pillow Cover Colored Drawing Red Base Reindeer. Home & Kitchen. Bedding. Hullovota.
E: New Slimline Power Supply Upgrade for SFF Desktop Computer - Fits: Dell Inspiron 530S, 531S, 537S, 546ST. Electronics. Computers & Accessories. Generic power supplies.
F: Standard Size 4 Gauge Magnetized Shower Curtain Liner Made with Mold, Mildew and Bacteria Resistant Vinyl (Gold). Home & Kitchen. Bath. Carnation Home Fashions.
G: Forward Tacky Tennis Racquet Overgrip Assorted Colors 10 Pack. Sports & Outdoors. Sports & Fitness. Forward.
H: New! 4GB (2X2GB) DDR2-800 SODIMM Laptop Memory PC2-6400. Electronics. Computers & Accessories. Samsung.
I: AppleRound Air Stability Wobble Cushion, Purple, 35cm/14in Diameter, Balance Disc, Pump Included. Sports & Outdoors. Sports & Fitness. AppleRound.
J: Fancy Collection 50"x60" Embossed Blanket Sumptuously Soft Plush Solid Blue with Sherpa Reversible Winter Blankets Bedspread Super Soft New (50" x 60", Blue). Home &...
K: Mounting Dream MD5420 Soundbar Bracket Universal Sound Bar TV Mount for Mounting Above or Under TV Fits Most of Sound Bars up to 22 LBS,...
L: Umbra Uscoop Ice Cream Scoop, Chrome. Home & Kitchen. Kitchen & Dining. Umbra.
M: KAITATSU SEN Rectangular Polyester Fabric Tablecloth, Red, 60x126-inch. Home & Kitchen. Kitchen & Dining. KAITATSU SEN.
N: iOgrapher Filmmaking Case for iPad Air 1 and 2. Electronics. Computers & Accessories. iOgrapher.
O: T2 2.4GHz Remote Controller Fly 3D Motion Stick Android Remote for PC, Smart TV, Set-top-box, Android TV Box, Media Player. Electronics. Television & Video. WMicro.
P: Mark Feldstein B456MTC Flameless Candle Pillar with Melted Top and 6-Hour Timer, Red Cinnamon, Set of 3. Home & Kitchen. Home Dcor. Mark Feldstein.
Q: DesignOvation Wyeth Framed Magnetic Chalkboard Wall Organization Board, Black. Home & Kitchen. Home Dcor. DesignOvation.
R: Geneva Black 13-1/2-Inch Quartz Wall Clock. Home & Kitchen. Home Dcor. Geneva.
S: 4 Inch Purple Fairy Sitting and Reading a Book Statue Figurine, Blue. Home & Kitchen. Home Dcor. PTC.
T: Westmark 97172260 Grinder for Almonds, Works for Nuts Chocolate and Cheese. Home & Kitchen. Kitchen & Dining. Westmark.


assistant
Answer: K