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: Prest-O-Fit 2-2000 Patio Rug Stakes - Pack of 4. Sports & Outdoors. Outdoor Recreation. Prest-O-Fit.
2nd: Trademark Innovations Aquatic Exercise Dumbells - Set of 2 - for Water Aerobics. Sports & Outdoors. Sports & Fitness. Trademark Innovations.
3rd: CARPATHEN Marshmallow Roasting Sticks - set of 6 Telescopic Smores Skewers Extra Long Heavy Duty - Perfect Hot Dog Forks for Outdoor Fire Pit &...

Options:
A: Dji Phantom 2 Vision Part 27 Lens Filter Mounting Kit. Electronics. Camera & Photo. DJI.
B: Mongoose Boy's Legion L60 20" Bicycle, One Size, White. Sports & Outdoors. Outdoor Recreation. Mongoose.
C: Clement Cycling Strada LGG Clincher 60 TPI Tan Side Wall Tire, Size: 700cm x 28mm. Sports & Outdoors. Outdoor Recreation. Clement Cycling.
D: All About Signs 2 Gift for Mom Only The Best Moms Are Promoted to Grandma. Home & Kitchen. Home Dcor. All About Signs 2.
E: AGPTEK 2-in-1 18 LED Camping Fan Lantern for Outdoor and Emergencies. Sports & Outdoors. Outdoor Recreation. AGPTEK.
F: SanDisk 16GB Class 4 Micro SDHC Memory Card, Frustration-Free Packaging- SDSDQ-016G-AFFP  (Label May Change). Electronics. Computers & Accessories. SanDisk.
G: SamWay Purple The World's Most Precision Stylus, The Precision Disc Stylus for iPad, iPhone and Other Touch Screen Devices. Electronics. Computers & Accessories. SamWay.
H: Eleduino Raspberry Pi 2 Raspberry Model B B+ (B Plus) Pure Transparent Case Enclosure Box +Heatsink Kit. Electronics. Computers & Accessories. EleDuino.
I: Set of 3 Beautiful Linen Tea Towels. Home & Kitchen. Kitchen & Dining. Greatlookz.
J: Rockville RVD951-GR 9” Gray Dual DVD/USB/HDMI/SD Car Headrest Monitors + Games. Electronics. Car & Vehicle Electronics. Rockville.
K: Cosmos ® Black 3 pcs DSLR camera Drawstring Soft Neoprene Lens Pouch Bag Cover for Sony Canon Nikon Pentax Olympus Panasonic + Free Cosmos Cable...
L: Gonesh Lavender - Extra Rich Incense. Home & Kitchen. Home Dcor. Gonesh.
M: Homedics Cool Mist Ultrasonic Humidifier for Baby with Built-In Soundspa HUM-PED1. Home & Kitchen. Heating, Cooling & Air Quality. Homedics.
N: Zak Designs 7-Piece Set Table Art, Assorted Rainbow Petals. Home & Kitchen. Kitchen & Dining. Zak Designs.
O: WYZworks 25 ft Red LED Rope Lights - 2 Wire Christmas Holiday Decoration Indoor/Outdoor Lighting | UL & CSA Certified. Home & Kitchen. Seasonal Dcor...
P: Intex Seahawk 4, 4-Person Inflatable Boat Set with Aluminum Oars and High Output Air Pump (Latest Model). Sports & Outdoors. Sports & Fitness. Intex.
Q: NFL Seattle Seahawks Flag with Grommets, 3' X 5', Blue/Green. Sports & Outdoors. Fan Shop. Fremont Die.
R: MESH SPORTS BAG - Large Backpack for Soccer Ball, Basketball, Swim, Pool Toy. Sports & Outdoors. Fan Shop. FunFitness.
S: Pro Mariner Universal AC Plug Holder, Black. Electronics. Accessories & Supplies. ProMariner.
T: United Cutlery UC2905 M48 Kommando Survival Axe. Sports & Outdoors. Outdoor Recreation. United Cutlery.


assistant
Answer: R