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: Nikon 18-200mm f/3.5-5.6G AF-S ED VR II Nikkor Telephoto Zoom Lens for Nikon DX-Format Digital SLR Cameras. Electronics. Camera & Photo. Nikon.
2nd: Nikon D5100 DSLR Camera with 18-55mm f/3.5-5.6 Auto Focus-S Nikkor Zoom Lens (OLD MODEL). Electronics. Camera & Photo. Nikon.
3rd: Wacom Intuos Intuos4 - Medium. Electronics. Computers & Accessories. Wacom.
4th: H2O Audio 100% Waterproof Headphones. Noise Canceling, Sweat Proof Surge+ Swim Headphones Perfect for Swimming & All Watersports, 'Black/Blue'. Electronics. Headphones. H2O Audio.
5th: Tamrac 5788 Evolution 8 Photo/Laptop Sling Backpack (Brown/Tan). Electronics. Computers & Accessories. Tamrac.
6th: Neewer Pro Battery Grip for Nikon D5100 5200 DSLR Camera Compatible with EN-EL14 Batteries. Electronics. Camera & Photo. Neewer.
7th: X-Mini II XAM4-B Portable Capsule Speaker, Mono, Black. Electronics. Portable Audio & Video. X-mini.
8th: UniFi Enterprise WiFi System AP Long Range UBIQUITI NETWORKS QA UAP-LR. Electronics. Computers & Accessories. Ubiquiti Networks.
9th: Biostar DDR3 1600 Intel LGA 1155/A&GbE/MicroATX Motherboard H61MGV3. Electronics. Computers & Accessories. Biostar.
10th: Dell U2415 24-Inch 1920 x 1200 LED Monitor. Electronics. Computers & Accessories. Dell.
11th: SilverStone 120mm Fan Filter with Grill FF121B (Black). Electronics. Computers & Accessories. SilverStone Technology.
12th: Cybertech Cat6, Cat5e RJ-45 8P8C Ethernet Modular Crimp Connectors Plugs Pack of 100. Electronics. Computers & Accessories. CyberTech.
13th: for DYMO LabelManager 280 Rechargeable Hand-Held Label Maker Hard Case by Khanka. Electronics. Accessories & Supplies. Khanka.

Options:
A: Datel PS3 Game Talk Pro 2 Wireless Headphones. Electronics. Headphones. by        Datel.
B: Whynter ARC-12S 12,000 BTU Portable Air Conditioner, Dehumidifier, Fan with Activated Carbon Filter plus Storage bag for Rooms up to 400 sq ft. Home &...
C: Royal Robbins Men's MerinoLux 1/4 Zip T-Shirt. Sports & Outdoors. Outdoor Recreation. Royal Robbins.
D: Circulon Nonstick Bakeware 9-Inch x 13-Inch Cake Pan, Gray. Home & Kitchen. Kitchen & Dining. Circulon.
E: Ring Terminal Marine Grade - Nylon Insulated - Double Crimp - 25 per Package PLEASE SELECT GAUGE SIZE AND STUD BELOW. Sports & Outdoors. Sports...
F: Ginkgo International Alsace Stainless Steel Seafood Forks, Set of 4. Home & Kitchen. Kitchen & Dining. Ginkgo International.
G: Epic Products Anchor Bottle Opener, Multicolor. Home & Kitchen. Kitchen & Dining. Epic Products.
H: 1 X Triple 3 Tier Serveware Steel Serving Stand Collapsible Galvanized Metal with Real Wood Handle. Home & Kitchen. Kitchen & Dining. GALVANIZED.
I: Rawlings Renegade Series Glove. Sports & Outdoors. Sports & Fitness. Rawlings.
J: Elvis Fans Parking Only - All Others Stay Off Of My Blue Suede Shoes. Home & Kitchen. Home Dcor. Flagline.
K: Diamondback 2013 Steilacoom CCX. Sports & Outdoors. Outdoor Recreation. Diamondback.
L: Sportime Color Jump Ropes Set- Assorted Colors-Fitness Boxing Double Unders Exercise Sports. Sports & Outdoors. Sports & Fitness. Sportime.
M: ADCO 3021 White RV Air Conditioner Cover. Home & Kitchen. Heating, Cooling & Air Quality. ADCO.
N: Invicta Men's 9937 Pro Diver Collection Coin-Edge Swiss Automatic Watch. Sports & Outdoors. Outdoor Recreation. Invicta.
O: Belkin Acrylic and Brushed Metal Case for iPod 5G, 5.5G (Black). Electronics. Portable Audio & Video. Belkin.
P: Ayangyang 30cm Usb 3.0 a Male to a Male High Quality Super Speed USB 3.0 a Type Male to a Male Cable for Macbook &...
Q: D-Link Systems Wireless AC1200 Simultaneous Dual Band Access Point (DAP-1665). Electronics. Computers & Accessories. D-Link.
R: Cathe Friedrich's Lower Body Blast DVD. Sports & Outdoors. Sports & Fitness. Cathe Friedrich's.
S: Hotel Collection Triple Compartment Feather and Down Pillow, Medium Queen. Home & Kitchen. Bedding. Northern Feather Canada.
T: Focal PS 165 6.5" 160 Watts RMS 2-Way Performance Series Component Speakers System. Electronics. Car & Vehicle Electronics. Focal.


assistant
Answer: P