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: Rank the items in options and predict the user's next purchase from the listed options by analyzing her historical purchases.

Input:
Purchase History:
1st: Zumba Fitness Women's Dip it Low V-Neck Tee. Sports & Outdoors. Sports & Fitness. Zumba.
2nd: Lupo Women's Essential No Slip Crossover Yoga Pilates Socks. Sports & Outdoors. Sports & Fitness. Lupo.
3rd: NFL Glitter Jersey Earrings. Sports & Outdoors. Fan Shop. aminco.
4th: GOGO Sports Headband/Sweatband, Terry Cloth Head Band. Sports & Outdoors. Sports & Fitness. GOGO.

Options:
A: Sony PCM-M10 Portable Audio Recorder (Black) With extra Sony 32GB microSDHC Class 10 UHS-1 Memory Card with microSD Adapter. Electronics. Computers & Accessories. Sony.
B: Proctor Silex 10-Cup Coffee Maker (48350). Home & Kitchen. Kitchen & Dining. Proctor Silex.
C: TUNES2GO CA-E065A KoolMAX Bluetooth 350-Watt Portable PA Speaker (Blue). Electronics. Portable Audio & Video. TUNES2GO.
D: 2 Nikon EN-EL5 / ENEL5 / CP1 Replacement Battery + Battery Charger Combo Pack FOR Nikon CoolPix 3700 / 4200 / 5200 / 5900 /...
E: Winco 22-Inch Wooden Pizza Peel with 12-Inch by 14-Inch Blade. Home & Kitchen. Kitchen & Dining. Winco.
F: Bluetooth Headphones Koncen V4.1 Wireless Bluetooth Headsets Running Earphone Stereo in-Ear Noise Cancelling Sweatproof Gym Neckband with Mic Sports Earbuds (White&Gold). Electronics. Headphones. Koncen.
G: FitDeck Exercise Playing Cards for Guided Workouts, Navy Seal. Sports & Outdoors. Sports & Fitness. FitDeck.
H: Westcott 301 Photo Basics 40-Inch 5-in-1 Reflector. Electronics. Camera & Photo. F.J. Westcott Co.
I: Burton & Burton Disney's Olaf Frozen Jumbo Balloon, Mylar, 41". Home & Kitchen. Event & Party Supplies. Anagram.
J: R-Tech 2MP (1080P) HD TVI Outdoor Bullet Security Camera with IR Night Vision – 3.6mm Fixed Lens – White. Electronics. Camera & Photo. R-Tech.
K: Cavalry Storage CAUM-B Series External Hard Drive (CAUM3701T0-OTB-B). Electronics. Computers & Accessories. Cavalry Storage.
L: Better Home New Crochet Vinyl Lace Tablecloth, 60" Wide X 108" Long Oblong, Bone Beige. Home & Kitchen. Kitchen & Dining. Better Home.
M: 60 AAA+ Titleist DT Solo Used Golf Balls . Sports & Outdoors. Sports & Fitness. Titleist.
N: Columbia River Knife & Tool 6444K CRKT Edgie 2 Lockback Knife with Thumb Slot. Sports & Outdoors. Outdoor Recreation. CRKT.
O: Garmin eTrex Venture Waterproof Hiking GPS. Electronics. GPS, Finders & Accessories. Garmin.
P: USA Gear NEO Read Tablet Cover Sleeve Compatible with Galaxy Tab E Lite 7.0" w/Carry Handle, Zippered Accessory Pocket, Protective Padded Neoprene - Fits Samsung...
Q: Metropolitan Tea White Ceramic Teapot Warmer. Home & Kitchen. Kitchen & Dining. Metropolitan Tea.
R: GOGO Sports Headband/Sweatband, Terry Cloth Head Band. Sports & Outdoors. Sports & Fitness. GOGO.
S: Liztek 10-Port Hub USB 3.0 Charger with 2 Smart Charging Ports. Electronics. Computers & Accessories. Liztek.
T: BIRUGEAR Camera LCD Lens Pen Pocket Cleaning Brush for Cisco Flip Video UltraHD 3rd Generation, Canon EOS 60D T3i T2i XT; Sony HX50V, NEX-5N; Fuji...


assistant
Answer: R