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: Silicon Power S70 120GB MLC 2.5" 7mm SATA III 6Gb/s Internal Solid State Drive (SSD). Electronics. Computers & Accessories. SP Silicon Power.
2nd: Neewer TT860LI-ION BATTERY Speedlite Flash E TTL Camera Flash for Canon 5D Mark 2 3 6D 7D 70D 60D 50D Digital Rebel T3 SL1 T5i...
3rd: TTL Off Camera Shoe Cord for Canon SL1 T5 T3 T6s T6i T5i T4i T3i T2i T1i XS 60D 70D 7D 6D 5D Mark II...
4th: Neewer 6 x 5 inches/15 x 12.5 centimeters Translucent Softbox for Canon Nikon and Other DSLR Cameras Flashes,Neewer TT560 TT850 TT860 NW561 NW670 VK750II Flashes...
5th: FLOUREON 2Packs 2.4V 1000mAh Ni-mh Cordless Phone Batteries for Panasonic HHRP105 HHR-P105 HHRP105A HHR-P105A Uniden:BBTG0658001 BT1009 BT-1009. Electronics. Accessories & Supplies. floureon.
6th: KMASHI® Superspeed USB 3.0 to VGA Adapter Adaptor External Video Converter for Windows (XP, Vista, 7, 8, 8.1) up to 1920x1080 1080P Laptop Computer to...
7th: Neewer Flash Bounce Light Diffuser for Canon 580EXII,Neewer TT520,TT560,NW680,TT850,TT860,NW580/VK750,NW670/VK750 II,NW690/MK950II,NW910/MK910,MK900,YONGNUO YN560I/II/III/IV,YN565EX,YN568EX/EXII. Electronics. Camera & Photo. Neewer.
8th: 1byone Thin and Shiny Indoor HDTV Antenna, 25 Miles Range with 16.5 Feet Extra Long High Performance Coaxial Cable. Electronics. Accessories & Supplies. 1 BY...

Options:
A: Mustard Bento Lunch Box with Compartments, Food Storage Containers for Kids and Adults  - Black Rock Box. Home & Kitchen. Kitchen & Dining. Mustard...
B: SteelLocker Sports Adult Playbook Wristband - Single Window. Sports & Outdoors. Sports & Fitness. SteelLocker Sports.
C: Microsoft Wireless Mobile Mouse 3500 - Poppy Red. Electronics. Computers & Accessories. Microsoft.
D: Bianchi Patroltek 8012 Black Expandable Baton Holder. Sports & Outdoors. Sports & Fitness. Bianchi.
E: GreatShield LCD Touch Screen Cleaning Kit with Microfiber Cloth, Brush, Cleaner Wipes Spray Solution for Laptops, PC monitors, Smartphones, Tablets, iPhone, iPad, LED, TVs, DSLR...
F: German WWII C-96 Wood Butt Stock and Holster Set, C96. Sports & Outdoors. Sports & Fitness. International Military Antiques, Inc.
G: Sony NWA26HNLM 32GB Hi-Res Walkman Digital Music Player with Noise Cancelation, Blue. Electronics. Portable Audio & Video. Sony.
H: Deny Designs Bianca Green Follow Your Heart Duvet Cover, King. Home & Kitchen. Bedding. Deny Designs.
I: Country style pink check lace square tablecloths 51"51"(130 130cm). Home & Kitchen. Kitchen & Dining. JH tablecloths.
J: CPS Wood Products Premium Easy Fit Box Spring Foundation, Full. Home & Kitchen. Furniture. Box Spring King.
K: Boat Life Sealant Lifeseal Cartridge, White. Sports & Outdoors. Sports & Fitness. Boatlife.
L: COD Bluetooth Keyboard Tablet Stand Leather Case for Samsung Galaxy Tab 3 7.0 P3200 (White/Red). Electronics. Computers & Accessories. COD(TM).
M: Wenzel 2008 Windy Pass 0-Degree Mummy Sleeping Bag (Black/Red) . Sports & Outdoors. Outdoor Recreation. Wenzel.
N: TGS Gems® Engraved Massage Stones Gift Spa Hot Rocks Etched Stone With Relax,Body,Soul Free Pouch. Home & Kitchen. Home Dcor. TGS Gems.
O: RHF Blackout French Door Curtains - Thermal Insulated Door panel 40W by 72L Inches-Beige. Home & Kitchen. Home Dcor. Rose Home Fashion.
P: Metra 99-7013TB Single DIN Dash Installation Kit for 2007-2010 Mitsubishi Outlander Vehicles. Electronics. Car & Vehicle Electronics. Metra.
Q: Homdox Soft Non-slip Safety Bath Mat Antibacterial Bath Tub Shower Mat PVC AN-NS005 shipping from CA.US(39.37*15.75 inch, Blue). Home & Kitchen. Bath. Homdox.
R: Fovitec - 1x Classic Photography & Video Lighting Equipment Duffle Bag - [35" x 9" x 9"][Lightweight][Durable Nylon][Dual Zippers]. Electronics. Camera & Photo. Fovitec.
S: Meal Prep Zone 3 Compartment Food Storage Containers with Lids, Set of 7. Home & Kitchen. Kitchen & Dining. Meal Prep Zone.
T: Spectrum Diversified Scroll Paper Towel Holder, Black. Home & Kitchen. Kitchen & Dining. Spectrum Diversified.


assistant
Answer: R