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: The user's purchase history implies her preferences. Rank the items in the options based on the user's preferences. Output the item that the user is most likely to purchase next from the options.

Input:
Purchase History:
1st: Hunter Safety System Youth HSS-8 Safety Harnesses, Realtree, Youth . Sports & Outdoors. Sports & Fitness. Hunter Safety System.
2nd: WAKA Official Kickball - Adult 10. Sports & Outdoors. Sports & Fitness. WAKA.

Options:
A: RPS Studio Rotating Flash Bracket with iTTL Cord for Nikon Digital SLR Cameras with 10 Pin Connectors (D100, D200,D300,D700 & D3). Electronics. Camera & Photo...
B: Mitsubishi RPTV Lamp Part 915P061010-ER Model Mitsubishi WD-C657 WDY657. Electronics. Accessories & Supplies. FI Lamps.
C: KKmoon 7" Video Door Phone Intercome Doorbell Remote Unlock Night Vision Rainproof Security CCTV Camera Home Surveillance TP01H-12. Electronics. Security & Surveillance. KKmoon.
D: SEDNA - 10/100/1000 Mbps Gigabit 4 Port USB over IP Device Server. Electronics. Computers & Accessories. Sedna.
E: STX Men's Lacrosse Stallion 200 U Complete Attack/Midfield Stick with Shaft and Head. Sports & Outdoors. Sports & Fitness. STX.
F: Dualcomm RJ45/RJ11 Cable Sharing Kit - Connecting your Ethernet and Telephone lines by One Network Cable. Electronics. Computers & Accessories. Dualcomm.
G: Elegant Comfort Beautiful Window Panel Curtain Sheer Voile Scarf 55" X 216" Neon Royal Blue. Home & Kitchen. Home Dcor. Elegant Comfort.
H: InterDesign Una Wastebasket Trash Can 10", Water. Home & Kitchen. Storage & Organization. InterDesign.
I: dcs deals Half Size Steam Table Deep aluminum pan 9/13 /100. Home & Kitchen. Kitchen & Dining. DCS Dealsptiv.
J: CamelBak 2016 Octane XCT Hydration Pack. Sports & Outdoors. Outdoor Recreation. CamelBak.
K: Ashley Furniture Signature Design - Alisdair Nightstand - 2 Drawers - Traditional - Rectangular - Dark Brown. Home & Kitchen. Furniture. Signature Design by Ashley.
L: Blue Color Bamboo Prince 100% Bamboo Fiber 60” x 80” Light Adult Blanket - Cool in summer, anti-baterial. Home & Kitchen. Bedding. Bamboo.
M: Hosa MIT-435 XLR3F to 1/4" TS Impedance Transformer. Electronics. Accessories & Supplies. Hosa.
N: Eathtek New CPU Cooling Fan with Heatsink for IBM Lenovo T60 T60P 41V9932 series. Electronics. Computers & Accessories. Lenovo.
O: C-Tug Kayak and Canoe Cart. Sports & Outdoors. Outdoor Recreation. C-Tug.
P: Premium Salad Spinner with Stainless Steel Serving Bowl and Storage Lid. Home & Kitchen. Kitchen & Dining. The Smithy Co.
Q: Magellan RoadMate 1210 3.5-Inch Portable GPS Navigator. Electronics. GPS, Finders & Accessories. Magllan.
R: NFL Game Day Board Game. Sports & Outdoors. Fan Shop. Fremont Die.
S: Dyson DC59 Animal Cordless Vacuum Cleaner. Home & Kitchen. Vacuums & Floor Care. Dyson.
T: PTX6 Portable Stereophone. Electronics. Headphones. Koss.


assistant
Answer: R