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: Prolimatech Megahalems Rev B. Intel CPU Heatsink (LGA 775/1156 / 1366) (AM2/2+/3 Mounting Kit Required). Electronics. Computers & Accessories. Prolimatech.
2nd: Rockford Fosgate R250X1 Prime 1-Channel Mono Block Amplifier. Electronics. Car & Vehicle Electronics. Rockford Fosgate.
3rd: Bbox E12ST Single 12" Sealed Carpeted Truck Subwoofer Enclosure. Electronics. Car & Vehicle Electronics. Atrend.
4th: Rockford Fosgate P3D2-10 Punch P3 DVC 2 Ohm 10-Inch 500 Watts RMS 1000 Watts Peak Subwoofer. Electronics. Car & Vehicle Electronics. Rockford Fosgate.
5th: KnuKonceptz KCA Complete 4 Gauge Amp Installation Kit. Electronics. Car & Vehicle Electronics. KnuKonceptz.
6th: Install Essentials 514N 6 Tone Neo Soft Chirp. Electronics. Car & Vehicle Electronics. Directed Electronics.
7th: Glass Break Sensor. Electronics. Security & Surveillance. Directed Electronics.

Options:
A: Sony Alpha a6000 24.3MP Interchangeable Lens Camera Bundle with Compact Deluxe Gadget Bag and 16-50mm Power Zoom Lens (19 Items). Electronics. Camera & Photo. Sony.
B: HHA OL-5519 Optimizer Lite .019 5500 Sight (Black). Sports & Outdoors. Sports & Fitness. HHA.
C: iSmart 16 CH DVR Surveillance D1 Security Camera System with HDMI VGA Output Support, Smart Phone and PC Remote Access. Electronics. Camera & Photo. iSmart.
D: ZTC Nano Wireless USB WiFi Adapter IEEE 802.11N b/g/n, WEP, WPA, WPA2. WPS Button with Strong Signal for PC and MAC Model ZTC-WUE001-BK. Electronics. Computers...
E: Set of 2 Home Decorative Moon & Stars Black Ceramic Aromatherapy Burner/Essential Oil Warmer Candle Holder - MyGift. Home & Kitchen. Home Dcor. MyGift.
F: Dell Inspiron M5030 N5030 Power Button Board & Ribbon Cable Dj2 50.4iu03.021. Electronics. Computers & Accessories. Dell.
G: VF LSG MLB Men's Old Time Pride Short Sleeve Crew Neck Tee. Sports & Outdoors. Fan Shop. VF LSG.
H: Primos Hook-Up Magnetic Box Call. Sports & Outdoors. Sports & Fitness. Primos Hunting.
I: Mediabridge 3.5mm Male To Male Stereo Audio Cable (12 Feet) - Tangle-Resistant - Step Down Design - (Part# MPC-35-12TSB ). Electronics. Accessories & Supplies. Mediabridge.
J: Pandigital Pan Touch PAN8002W02T 8-Inch Digital Picture Frame (Black). Electronics. Camera & Photo. PanDigital.
K: Lexar JumpDrive S50 16 GB USB Flash Drive - LJDS50-16GASBNA (Orange). Electronics. Computers & Accessories. Lexar.
L: VonShef Single Serve Personal Filter Coffee Machine with 14oz Travel Mug & Lid. Home & Kitchen. Kitchen & Dining. VonShef.
M: PHYLINK Bullet HD720, 720P HD Waterproof Outdoor Home Security IP Camera, Megapixel lens, True Day Night Vision, HD 720P High Definition, Wireless WiFi, PoE, Motion...
N: 4pcs Good Grips Handmade Natural Wooden Soup Cooking Spoons,material of Nanmu,9in(002). Home & Kitchen. Kitchen & Dining. HIZBO MART.
O: Water Resistant Portable Wireless Speaker by Braven. Black with Orange Relief and Gray Grill. 1400mA battery. Electronics. Portable Audio & Video. Braven.
P: Directed Install essentials Dual Zone Motion Sensor 508d. Electronics. Car & Vehicle Electronics. Directed Electronics.
Q: Delightly Pasta Strainer Pot Strainer Easy Draining Durable Dishwasher Safe. Home & Kitchen. Kitchen & Dining. Delightly.
R: OvenStuff Non-Stick Meatloaf Pan with Fat-A-Way Insert. Home & Kitchen. Kitchen & Dining. OvenStuff.
S: Embroidered Cut Out Americana Table Linens, Runner. Home & Kitchen. Kitchen & Dining.
T: Midland GXT720VP3 30-Mile 36-Channel FRS/GMRS Two-Way Radio (Pair). Electronics. Portable Audio & Video. Midland.


assistant
Answer: P