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 items in listed options based on the user's purchase history to determine the item that the user is most likely to purchase next. Output the item with the highest likelihood of being the next purchase.

Input:
Purchase History:
1st: Samsung BD-P1400 1080p Blu-Ray Disc Player. Electronics. Television & Video. Samsung.
2nd: Terk HDTVAZ Amplified Indoor HDTV Antenna. Electronics. Accessories & Supplies. Terk.

Options:
A: [New Upgrade]32GB Lightning i Flash Drive, SurLight iphone ipad USB i-Flash Drive Memory Stick with Lightning Connector and APP to Add Extra Storage for iPhone...
B: Premium 2 x Large Nut Milk Bag - Big 12"x12" and 12"x10"- Reusable Almond Milk Bag, Food Strainer, Ebook:Healthy Recipes. Home & Kitchen. Kitchen &...
C: 16 Piece Roaming Elk Stoneware Dinnerware Set w/ Mugs, Plates & Bowls. PERFECT FOR ANY CABIN ON SALE NOW. Home & Kitchen. Kitchen & Dining...
D: Oliasports Pack of 2 Taekwondo Durable Black Kick Pad Target Tae Kwon Do Karate Kickboxing Training.  Oliasports.
E: Headphones, Sound Intone Headphones with Microphone, Foldable Headset with Inline Volume Control Strong Low Bass for iPhone iPad Smartphones Laptop Mp3/4 (Black Orange). Electronics. Headphones...
F: CyberPower EC350G Ecologic UPS System, 350VA/255W, 8 Outlets, ECO Mode, Compact. Electronics. Computers & Accessories. CyberPower.
G: Arbogast Buzz Plug. Sports & Outdoors. Sports & Fitness. Arbogast.
H: UTG 3.4" Ambidextrous Pocket Holster. Sports & Outdoors. Sports & Fitness. UTG.
I: PS 202 NC Active Noise Cancelling Earphones with Microphone. Electronics. Headphones. Phiaton.
J: ONE4ALL Univ 3DEVICE Remote Blk Tv Directv Dvr Learns and Macro. Electronics. Accessories & Supplies. One For All.
K: 12" Inch Flexible Tripod w/ Wrapable Legs. Quick Release Plate for DSLR Cameras and Camcorders, eCost Microfiber Cleaning Cloth. Electronics. Camera & Photo. eCost.
L: GelaSkins Protective Kindle DX Skin (Fits 9.7" Display, Latest and 2nd Generation Kindles), Bookshelf. Electronics. eBook Readers & Accessories. GelaSkins.
M: Balega Blister Resist Crew Socks for Men and Women (1 Pair) (2017 Model). Sports & Outdoors. Sports & Fitness. Balega.
N: Boker Plus 02BO216 Armed Forces Fixed Blade Knife with 7-1/3 in. Straight Edge Blade, Black. Sports & Outdoors. Sports & Fitness. Bker.
O: Padlette D3 Green (for iPad and all other full-size tablets). Electronics. Computers & Accessories. Padlette.
P: 64GB SD XC SDXC Class 10 SCT Professional High Speed Memory Card SDHC 64G (64 Gigabyte) Memory Card for Canon Digital Camera Powershot with SD...
Q: Callaway Jumbo Light Putter Grip. Sports & Outdoors. Sports & Fitness. ODYSSEY.
R: Mitsubishi 3DA-1 3D Adapter Pack. Electronics. Accessories & Supplies. Mitsubishi.
S: OceanHeart Wireless Bluetooth 4.0 Receiver Adapter Hands-free Car Kit, Dual Port USB Car Charger, Siri Voice Control, Magnetic Base, Multifunction Button for Car Stereo System...
T: Nike Womens 3-Pack Dri Fit Cushion No-Show Tab Ankle Socks Multi-Color SX4841-913 Size Medium 6-10. Sports & Outdoors. Sports & Fitness. Nike.


assistant
Answer: R