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: Zune 4 GB Digital Media Player (Pink). Electronics. Portable Audio & Video. Zune.
2nd: Zune 4 GB Video MP3 Player (Black). Electronics. Portable Audio & Video. Zune.
3rd: SanDisk Sansa Fuze 8 GB Video MP3 Player (Black). Electronics. Portable Audio & Video. SanDisk.
4th: Sennheiser MM 450 Flight Bluetooth Multimedia Headset with Noise Cancellation - Black (Discontinued by Manufacturer). Electronics. Computers & Accessories. Sennheiser.
5th: Belkin N300 Pocket WiFi Adapter, 300Mbps Link Rate. Electronics. Computers & Accessories. Belkin.
6th: ASUS Whole Home Dual-Band AiMesh Router (AC1900) for Mesh Wifi System (Up to 1900 Mbps) - AiProtection Network Security by Trend Micro, Adaptive QoS &...
7th: Garmin eTrex? 20 GPS handheld. Electronics. GPS, Finders & Accessories. Garmin.
8th: ASUS VM60-G106M Barebone System (Discontinued by Manufacturer). Electronics. Computers & Accessories. Asus.
9th: 2327 - Raspberry Pi PWM Servo Hat Development Board. Electronics. Computers & Accessories. Adafruit.
10th: FAVI FE01 2.4GHz Wireless USB Mini Keyboard w Mouse Touchpad, Laser Pointer - US Version (Includes Warranty) - Silver (FE01-SL). Electronics. Computers & Accessories. FAVI.

Options:
A: Foxnovo A Pair of Replacement Soft PU Foam Headphone Ear Pads Ear Cushions for Sony MDR-V700DJ V700 MDR-V500DJ V500 (Black). Electronics. Accessories & Supplies. Foxnovo.
B: Skullcandy Crusher Headphones with Built-in Amplifier and Mic, Black. Electronics. Headphones. Skullcandy.
C: CrazyOnDigital Nano_6g_Watchband_12items 12-in-One Watchband and Accessory Bundle for iPod Nano 6G. Electronics. Portable Audio & Video. CrazyOnDigital.
D: Outdoor Research Women's Crocodile Gaiters. Sports & Outdoors. Outdoor Recreation. Outdoor Research.
E: Fnova 47-inch Aluminum Alloy Professional Standard Snake Tong Reptile Grabber Rattle Snake Catcher Wide Jaw Handling Tool with Blue Coating and Good Grip Handle. Sports...
F: Continental Sleep, 9-Inch Gentle Firm Tight top Innerspring Mattress And Wood Traditional Box Spring/Foundation Set, Good For The Back, No Assembly Required, Twin Size 74"...
G: iHome iDM1 Sleek Stereo Speaker System for iPad, iPhone, iPod or other Audio Devices (Discontinued by Manufacturer). Electronics. Portable Audio & Video. iHome.
H: EnviroCare Replacement Vacuum Bags for Kenmore 51195 Magic Blue Canisters 8 Pack. Home & Kitchen. Vacuums & Floor Care. EnviroCare.
I: bouti1583 Fishing Tackle Lure Snakehead Bass Killer Insect Cicada Freshwater Bait 6g. Sports & Outdoors. Sports & Fitness. bouti1583.
J: Rail19 Small Glass Foaming Soap Dispenser with Metal Pump (Copper). Home & Kitchen. Bath. Rail19.
K: Nikon P- RIMFIRE 2-7x32 Nikoplex Rifle Scope, Black. Sports & Outdoors. Sports & Fitness. Nikon.
L: Beretta M84FS 17 Rounds 0.177 Caliber Air Pistol BB Magazine, Black. Sports & Outdoors. Sports & Fitness. Beretta.
M: Halcyon 1200 mAH Lithium Ion Replacement Battery and Charger Kit for Sony DSC-W830 Digital Camera and Sony NP-BN1. Electronics. Camera & Photo. Halcyon.
N: Mohu Leaf Metro TV Antenna, Indoor, Portable, 25 Mile Range, Original Paper-thin, Reversible, Paintable, 4K-Ready HDTV, 10 Foot Detachable Cable, Premium Materials for Performance, USA...
O: Antler Soap Pump. Home & Kitchen. Bath. sss.
P: RCA TH2014 4GB MP3 Player with USB. Electronics. Portable Audio & Video. RCA.
Q: Kodak PIXPRO SP1 Action Cam with Explorer Pack 14 MP Water/Shock/Freeze/Dust Proof, Full HD 1080p Video, Digital Camera and 1.5" LCD Screen (Yellow). Electronics. Camera...
R: Raspberry Pi 2 Model B Desktop (Quad Core CPU 900 MHz, 1 GB RAM, Linux). Electronics. Computers & Accessories. Raspberry Pi.
S: Pisfun Portable Fishing Line Spooler/Winding System Ultimate Line Winder Spooling Station Fishing Tool. Sports & Outdoors. Sports & Fitness. Pisfun.
T: Earthsmart Zero Trees Portapack Compostable Bathroom Tissue. Sports & Outdoors. Outdoor Recreation. Earthsmart Zero Trees.


assistant
Answer: R