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: POV Case 3.0 Small black - suitable for GoPro HD Hero 4, 3+, 3, 2. Electronics. Camera & Photo. SP Gadgets.
2nd: Wasabi Power Battery (2-Pack) and Charger for GoPro HERO3+, HERO3 and GoPro AHDBT-201, AHDBT-301, AHDBT-302. Electronics. Camera & Photo. Wasabi Power.
3rd: XShot 2.0 Camera Extender for Most Cameras XS2379-F. Electronics. Camera & Photo. XShot.

Options:
A: Airfox Electric Wine Opener,Cordless Wine Opener,Silver Grey. Home & Kitchen. Kitchen & Dining. Airfox.
B: Contigo AUTOSEAL Elle Double Wall Insulated Mug - 14oz. - Red. Home & Kitchen. Kitchen & Dining. Contigo.
C: Rabbit Zippity 2-Step Waiter's Corkscrew. Home & Kitchen. Kitchen & Dining. Metrokane.
D: OSD ACE850 8" Trimless In-Ceiling/In-Wall Speaker 175W w/Kevlar Woofer and Pivoting Titanium Dome Tweeter (White, Pair). Electronics. Home Audio. OSD Audio.
E: Siskiyou NCAA Unisex-Adult Dangle Earrings. Sports & Outdoors. Fan Shop. Siskiyou.
F: Useful. UH-BC187 Stainless Steel Bathtub Caddy with Extending Sides and Book Holder. Home & Kitchen. Bath. Useful.
G: Shark Lift-Away 2 in 1 Corded Steam Pocket Mop S3901UK. Home & Kitchen. Vacuums & Floor Care. SharkNinja.
H: ClearStream 4 Indoor/Outdoor HDTV Antenna - 70 Mile Range. Electronics. Accessories & Supplies. Antennas Direct.
I: SanDisk 16GB Ultra Backup USB 2.0 Flash Drive (SDCZ40-016G-A11). Electronics. Computers & Accessories. SanDisk.
J: Nikon Coolpix L830 Digital Camera Memory Card 32GB Secure Digital (SDHC) Flash Memory Card. Electronics. Computers & Accessories. Transcend.
K: GoPro Suction Cup Mount. Electronics. GPS, Finders & Accessories. GoPro.
L: Mushkin Chronos 240 GB SATA 6.0 Gb-s 2.5-Inch Solid State Drive (MKNSSDCR240GB). Electronics. Computers & Accessories. Mushkin.
M: BRAVO COMPANY BCM Gunfighter Trigger Guard. Sports & Outdoors. Sports & Fitness. Bravo Company.
N: UTG Extreme Ops 198 Tactical Leg Holster - Black. Sports & Outdoors. Sports & Fitness. UTG.
O: Lily's Home Double Wall Frosty Freezer Mugs. 16 oz each. Set of 4. Home & Kitchen. Kitchen & Dining. Lilyshome.
P: Sony Cybershot DSCP93A 5MP Digital Camera with 3x Optical Zoom. Electronics. Camera & Photo. Sony.
Q: Verbatim 96668 Speaker Keyboard (Tune Board) for Windows, Black. Electronics. Computers & Accessories. Verbatim.
R: Quake the Claw Rifle/Shotgun Slings Realtree Max-5. Sports & Outdoors. Sports & Fitness. Quake.
S: Wiebetech Mouse Jiggler Fast Version. Electronics. Computers & Accessories. WiebeTech.
T: 3 Piece Kitchen Curtain Set : 1 Valance, 2 Tiers, Solid Colors, Metal Grommets (Gold). Home & Kitchen. Home Dcor. Vc.


assistant
Answer: K