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: Kingston KVR333X64SC25/512 512MB PC2700 CL2.5 SODIMM UNB DDR Non-ECC Memory. Electronics. Computers & Accessories. Kingston.
2nd: CaseCrown Postal Tag Style Case for Panasonic Lumix DMC-LX3 Point and Shoot Digital Camera. Electronics. Camera & Photo. CaseCrown.
3rd: SanDisk 16GB Cruzer USB Flash Drive. Electronics. Computers & Accessories. SanDisk.

Options:
A: CowboyStudio Photo and Video Studio Umbrella Continuous Lighting Light Kit- 27 feet Stands, 1 Mini Stand and Carry Case. Electronics. Camera & Photo. CowboyStudio.
B: Flexion KS-902 Kinetic Series Wireless Bluetooth Noise Cancelling Headphones with Microphone, Black. Electronics. Headphones. Flexion.
C: Barska 40mm Varmint Riflescope Shade, 5-Inch. Sports & Outdoors. Sports & Fitness. BARSKA.
D: Power Web Finger, Hand, Wrist, And Forearm Exerciser. Sports & Outdoors. Sports & Fitness. Power Systems.
E: Iron Man Heavy Metal Plush Throw Blanket the Avengers 46 X 60. Home & Kitchen. Bedding. Marvel.
F: Fountain Pro Battery Operated Submersible Fountain Pump. Home & Kitchen. Home Dcor. Fountain Pro.
G: Zevro KCH-06091 Vac 'n Save Ruby Round-Shaped Vacuum-Sealing Food-Storage Containers, Set of 3. Home & Kitchen. Kitchen & Dining. ZevrO.
H: The Elf on the Shelf Claus Couture Collection Chef Apron Set. Home & Kitchen. Kitchen & Dining. The Elf on the Shelf.
I: No. 918 Dawson Plaid Kitchen Curtain Tier Pair, 58" x 36", Sage Green. Home & Kitchen. Home Dcor. No. 918.
J: American Atelier Marble Coasters with Ribbon, White, Set of 4. Home & Kitchen. Kitchen & Dining. American Atelier.
K: XSPC D5 Aluminium Screw Ring (Black). Electronics. Computers & Accessories. XSPC.
L: Dimension 9 9-Function Multi-Purpose Tool Knife. Sports & Outdoors. Outdoor Recreation. Dimension.
M: (OLD MODEL) Crucial BX100 1TB SATA 2.5” 7mm (with 9.5mm adapter) Internal Solid State Drive - CT1000BX100SSD1. Electronics. Computers & Accessories. Crucial.
N: United Curtain New Rochelle Lace Kitchen Tiers, 56 by 24-Inch, White, Set of 2. Home & Kitchen. Home Dcor. United Curtain.
O: Grasslands Road Pretty Wicked Black Cat"Don't Be So Catty." Latte Mug. Home & Kitchen. Kitchen & Dining. Grasslands Road.
P: Vitamix 56085 48 Ounce Container. Home & Kitchen. Kitchen & Dining. Vitamix.
Q: UltraPro Step-Up Adapter Ring 67mm Lens to 72mm Filter Size. Electronics. Camera & Photo. UltraPro.
R: G.1 Airsoft 6mm Pistol Metal Zinc Alloy Shell Hand Gun. Sports & Outdoors. Sports & Fitness. GALAXY.
S: Sun Zero Barrow Energy Efficient Door Panel Curtain with Tie Back, 54" x 72", Taupe. Home & Kitchen. Home Dcor. Sun Zero.
T: EVGA Watercooling Kit for Hadron Hydro 100-WC-S201-BR. Electronics. Computers & Accessories. EVGA.


assistant
Answer: M