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: Brondell O2+ Source Air Purifier with True HEPA and Carbon Filtration for Odor and VOCs (Black). Home & Kitchen. Heating, Cooling & Air Quality. Brondell.
2nd: Sweet Home Collection Hypoallergenic Topper Polyester Down Alternative Soft and Luxurious Fiber Bed Mattress Pad, Full. Home & Kitchen. Bedding. Sweet Home Collection.

Options:
A: Oenophilia Wooden Muddler. Home & Kitchen. Kitchen & Dining. Oenophilia.
B: Abu Garcia Ambassadeur C3 Casting Reel. Sports & Outdoors. Sports & Fitness. Abu Garcia.
C: Photo Basics 413 4-Socket Adapter. Electronics. Camera & Photo. Photo Basics.
D: RipStik Caster Board (G 15055030 reen). Sports & Outdoors. Outdoor Recreation. RipStik.
E: CVLIFE Tactical 3-12x42E Rifle Scope Red & Green Illuminated Crosshair Optics Hunting Gun Scope with 20mm Free Mounts. Sports & Outdoors. Sports & Fitness. CVLIFE.
F: Laser Engraved Enhanced Trigger Guard - Zombie Outbreak Response Team. Sports & Outdoors. Sports & Fitness. Molon Labe Engraving.
G: OPO Opera Theater Horse Racing Glasses Binocular Telescope With Handle (Gold with Gold Trim) 3X25. Electronics. Camera & Photo. OPO.
H: Bionic GGNBMLL Men's StableGrip with Natural Fit Black Golf Glove, Left Hand, Large. Sports & Outdoors. Sports & Fitness. Bionic.
I: Zadro 10X/1X Magnification Surround Lighted Dual-Sided Dimmable, Wall Mirror, Satin Nickel Finish. Home & Kitchen. Home Dcor. Zadro.
J: PNY GeForce GTX 1070 Founders Edition VCGGTX10708PB-CG. Electronics. Computers & Accessories. PNY.
K: VAlinks 3.5mm Microphone Condenser,Plug and Play Microphones PC Mic with Tripod Stand,Omnidirectional Microphone for Skype,YouTube,Google Voice. Electronics. Computers & Accessories. VAlinks.
L: HQRP AC Adapter / Power Supply for ASUS Eee PC 900 900A 900HA 900HD 900SD 901 904HA 1000 1000H 1002HA 1000XP S101 Netbook / Subnotebook...
M: Pine Ridge Archery Reel-A-Strap Equipment Hoist, 30-Feet. Sports & Outdoors. Sports & Fitness. Pine Ridge Archery.
N: AxeSickle Oil Dispenser Stopper Pour Spout 6PCS Speed Pourer, Wine Bottle Stoppers, Liquor Pour Spout, Vinegar spouts, Olive Oil Bottle Tapered Spout for Oil, Wine,...
O: TMS Portable Green Outdoor Pop Up Tent Camping Shower Privacy Toilet Changing Room. Sports & Outdoors. Outdoor Recreation. TMS.
P: Alfa Long-Range Dual-Band AC1200 Wireless USB 3.0 Wi-Fi Adapter w/2x 5dBi External Antennas - 2.4GHz 300Mbps / 5Ghz 867Mbps - 802.11ac & A, B, G,...
Q: Speck SeeThru Satin MacBook Air 13-Inch Clementine (Fits Late 2010 and June 2011 Releases of MacBook Air 13 Inch), SPK-A0360. Electronics. Computers & Accessories. Speck.
R: R&M Apple 4" Cookie Cutter in Durable, Economical, Tinplated Steel. Home & Kitchen. Kitchen & Dining. CybrTrayd.
S: Dax 16 by 20 Inch Black Wood Wall Frame. Home & Kitchen. Home Dcor. Snap.
T: Microfiber Pearl Weave Kitchen Towels (2-Pack, Natural). Home & Kitchen. Kitchen & Dining. Nouvelle Legende.


assistant
Answer: R