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: Outdoor Recreational Company of America Cooler with Lid & Bottom. Sports & Outdoors. Outdoor Recreation. Outdoor Recreational Company of America.
2nd: Outdoor Recreational Company of America Cooler with Lid & Bottom. Sports & Outdoors. Outdoor Recreation. Outdoor Recreational Company of America.

Options:
A: Fintie iPad Pro 12.9 (1st Gen 2015) Case - 360 Degree Rotating Stand Case with Smart Protective Cover Auto Sleep/Wake Feature for Apple 12.9-inch iPad...
B: Mesh Task Office Chair with Flip Up Arms. Color: Black. Home & Kitchen. Furniture. Techni Mobili.
C: Progo 50 Pack Standard Black Single DVD Cases 14MM. Electronics. Accessories & Supplies. Progo.
D: Cheese Grater Extra Coarse - 18/8 Stainless Steel, No-Slip Handle - Two Free Gifts - Professional Grade. Home & Kitchen. Kitchen & Dining. Savorini.
E: Memorex 32028027 OPTIFIX PRO ET Refill Kit (Discontinued by Manufacturer). Electronics. Accessories & Supplies. Memorex.
F: Weaver Leather EZWash Wand. Sports & Outdoors. Sports & Fitness. Gatsby Leather.
G: Sturm Military Surplus East German Steel Helmet. Sports & Outdoors. Sports & Fitness.
H: Custom SLR C-Loop Camera Strap Mount (Silver). Electronics. Camera & Photo. Custom SLR.
I: OXO Good Grips 2-Tier Shower Caddy. Home & Kitchen. Bath. OXO.
J: CozyClouds Extra Plush Luxurious Billowy Clouds Hypoallergenic Gel Fiber Poly Overfilled Quilted Pillow-Top Thick 300 Thread Count 100% Cotton Cover Queen Size Fitted Mattress Topper...
K: Coaster Black DVD Rack. Home & Kitchen. Furniture. Coaster Home Furnishings.
L: NCAA Alabama Crimson Tide Ribbon Band Bracelet. Sports & Outdoors. Fan Shop. aminco.
M: Sony 10DMR47SS 16x DVD-R 4.7GB Recordable DVD Media - 10 Pack. Electronics. Accessories & Supplies. Sony.
N: Original Nokia Stereo Headset WH-701 WH701 3.5mm AV Connector. Electronics. Headphones. Nokia.
O: Mardingtop 35L/40L Tactical Backpacks Molle Hiking daypacks for Camping Hiking Military Traveling. Sports & Outdoors. Outdoor Recreation. Mardingtop.
P: Vermil Thumb Ring - Classic Black - Premium Traditional Archery Equipment. Sports & Outdoors. Sports & Fitness. Vermil.
Q: Cast Iron Alligator Paper Towel Holder, 5" X 7" X 12"t. Home & Kitchen. Kitchen & Dining. Kalalou.
R: Flambeau WP5012 Ultimate Tuff Tainer Double Deep Waterproof Utility Box, 16 Compartments with 5 Zerust, Adjustable Dividers. Sports & Outdoors. Sports & Fitness. Flambeau Outdoors.
S: Pack of 6 - New York Panoramic Photo Magnets NYC Souvenir Gift Set 5x1.6 Inches. Home & Kitchen. Kitchen & Dining. Universal Souvenir.
T: Gigabyte AMD Radeon R9 290 4GB GDDR5 2DVI/HDMI/DisplayPort PCI-Express Video Card GV-R929WF3-4GD. Electronics. Computers & Accessories. Gigabyte.


assistant
Answer: O