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: Acer Aspire S7-392-9890 13.3-Inch Touchscreen Ultrabook (1.8 GHz Intel Core i7-4500U Processor, 8GB DDR3L, 256GB SSD, Windows 8) Crystal White. Electronics. Computers & Accessories. Acer.
2nd: Equity by La Crosse 30037 Jumbo 1.8-Inch LED Alarm Clock. Electronics. Home Audio. Equity by La Crosse.
3rd: ASUS UX301 13-Inch Laptop [2013 model]. Electronics. Computers & Accessories. Asus.
4th: Nulaxy Business Pro Rechargeable Wireless Bluetooth Keyboard for iOS Windows Android. Electronics. Computers & Accessories. CovertSafe.
5th: Teviwin 2 in 1 Slim Capacitive Stylus & Ballpoint Pen for Universal Touch Screens Devices, iPhone 6 Plus, iPad, Tablets, Samsung Galaxy (12 Colors/ Pieces)...
6th: Samsung ATIV Book 9 Plus NP940X3G-K04US 13.3-Inch Touchscreen Laptop (1.8 GHz Intel Core i7-4500U Processor, 8GB DDR3, 256GB SSD, Windows 8) Ash Black. Electronics. Computers...
7th: Garmin nuvi 2599LMTHD Case Bundle Includes: nuvi 2599LMTHD Advanced Series 5" GPS Navigation System with Bluetooth, Lifetime Maps, & HD Digital Traffic, and Garmin Nuvi...
8th: Skullcandy Smokin' Buds 2 Noise Isolating Earbuds with In-Line Microphone and Remote, Moisture Resistant, Oval-Shaped and Angled for Long-Term Comfort, Black. Electronics. Headphones. Skullcandy.
9th: SAVEICON iPad Air 2 Case - Hybrid PU leather Folio Case Cover with Card Slots Auto Wake/Sleep Smart Cover Stand for Apple iPad Air 2...
10th: DSTE 2x BP-70A Battery + DC97 Travel and Car Charger Adapter for Samsung ST95 ST100 ST6500 SL50 SL600 TL205 WB30F WB35F DV150F ES65 ES67 MV800...
11th: AmazonBasics Ultra-Thin Indoor HDTV Antenna - 25 Mile Range. Electronics. Accessories & Supplies. AmazonBasics.
12th: FlePow 4000W 110-250V 8 Surge-Protected Outlets Power Socket with 4 USB Outputs and 6.5 Feet Cord (ZL201430118389.2). Electronics. Accessories & Supplies. FlePow.

Options:
A: Toysmith Bamboo Kendama (7-Inch). Home & Kitchen. Home Dcor. Toysmith.
B: Espresso Coffee Cups with Matching Saucers (Set of 6) by Yedi Houseware|Premium Quality Porcelain In Stylish, Aubergine Colors for Perfect Italian Espresso Experience|Stunning Hostess Gift...
C: SMS Audio Bio Sport Biometric Wired in-Ear Headphones with Heart Rate Monitor, Black/Grey. Electronics. Headphones. SMS Audio.
D: EcoSol Designs Microfiber Damask Tablecloth, Wrinkle-Free & Stain Resistant (60x84, Ivory) Swirls. Home & Kitchen. Kitchen & Dining. EcoSol Designs.
E: Speedo Women's Primal Splice Flyback Life Lycra Swimsuit. Sports & Outdoors. Sports & Fitness. Speedo.
F: VktechÂ Stainless French Fry Cutter Potato Vegetable Slicer. Home & Kitchen. Kitchen & Dining. Vktech.
G: Life Is Beautiful Text Silhouette Macbook Symbol Keypad Iphone Apple Ipad Decal Skin Sticker Laptop, 6.5". Electronics. Computers & Accessories. Southern Sticker Company.
H: Prestige PC2436-3 Studio Series Lite Art Portfolio 3 inch Gusset (24" x 36"). Electronics. Camera & Photo. Alvin.
I: CableWholesale RJ45 CAT-5 E Crimp Connector Shielded, 50 Pieces per Bag (31D0-51007). Electronics. Accessories & Supplies. CableWholesale.
J: Altec Lansing IMW577 LifeJacket 2 Floating Portable Waterproof Bluetooth Speaker, Black/Red. Electronics. Portable Audio & Video. Altec Lansing.
K: Direct Action Dragon Egg Tactical Backpack. Sports & Outdoors. Sports & Fitness. Direct Action.
L: Asus G60JX-RBBX05 Intel i5-430M, 4 GB, 500 GB, NVIDIA GTS360M, Webcam, 16-Inch LED, Windows 7 Notebook. Electronics. Computers & Accessories. Asus.
M: Horizon Fitness T101-04 Treadmill. Sports & Outdoors. Sports & Fitness. Horizon Fitness.
N: Power Strip USB dodocool Surge Protector Long Cord Multiple Outlet Adapter USB Charging Station with 4 Outlets and 20W 4 USB Charging Ports 4.92ft Cord...
O: Jonathan Adler Hashish Candle. Home & Kitchen. Home Dcor. Jonathan Adler.
P: Fotodiox Pro Camera Kit for Sony Cyber-shot RX1 DSC-RX1 and RX1R DSC-RX1R Digital Camera; Includes - All Metal Black Camera Hand Grip with Battery Access,...
Q: Uncle Mike's Law Enforcement Kodra Nylon Open Top Single Handcuff Case with Belt Loop (Black). Sports & Outdoors. Sports & Fitness. Uncle Mike's.
R: JBL Xtreme Portable Wireless Bluetooth Speaker (Blue). Electronics. Portable Audio & Video. JBL.
S: Spyderco Endura 4 Stainless Steel Combination Edge Knife. Sports & Outdoors. Sports & Fitness. Spyderco.
T: Outdoor Wireless Speaker and Dock. Electronics. Portable Audio & Video. Brookstone.


assistant
Answer: R