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 items in listed options based on the user's purchase history to determine the item that the user is most likely to purchase next. Output the item with the highest likelihood of being the next purchase.

Input:
Purchase History:
1st: RDX Kids MMA Gloves Grappling Martial Arts Sparring Punching Bag Junior Cage Fighting Youth Maya Hide Leather Mitts Children UFC Combat Training. Sports & Outdoors...
2nd: Set of 2 Red Padded Sparring Bokken Foam Sword Practice Blade. Sports & Outdoors. Sports & Fitness. Practice Swords.
3rd: RDX MMA Gloves Grappling Martial Arts Sparring Punching Bag Cage Fighting Maya Hide Leather Mitts UFC Combat Training. Sports & Outdoors. Sports & Fitness. RDX.
4th: RDX MMA Gloves Grappling Martial Arts Sparring Punching Bag Cage Fighting Maya Hide Leather Mitts UFC Combat Training. Sports & Outdoors. Sports & Fitness. RDX.

Options:
A: Fotasy CokinP18in1Set Rainbowimaging 18-In-1 Square Filter Kit Compatible for Cokin P Series. Electronics. Camera & Photo. Fotasy.
B: Distressed Wood Whale Coat Rack with 4 Hooks (Distressed Cream). Home & Kitchen. Storage & Organization. Home Office Collection.
C: Philips 40PFL3705D/F7 40-Inch 1080p 120 Hz LCD HDTV, Black. Electronics. Television & Video. Philips.
D: Suction Cup Mount +Tripod Adapter For GoPro HD Hero Hero2 Hero3 Camera. Electronics. Camera & Photo. Waterwood.
E: E-XUJING Metal Clip Digital MP3 Player FM Radio LCD Screen for 2/4/8/16GB TF Card Green. Electronics. Portable Audio & Video. Generic.
F: Lenovo ThinkPad Edge E545 20B20011US AMD Elite 15.6" Windows 7 Professional Business Notebook PC (AMD A6-5350M 2.9GHz Processor, Windows 7 PRO 64-Bit, 8GB RAM, 320GB...
G: Kidd Takedown Screw for a 10/22 or Ruger 10/22- Black. Sports & Outdoors. Sports & Fitness. KIDD Innovative Design.
H: O2COOL® ArcticSqueeze® Insulated Mist 'N Sip® Squeeze Bottle 20 oz. Sports & Outdoors. Sports & Fitness. O2COOL.
I: Henoda 15PCS Replacement Bands with Metal Clasps for Fitbit Flex Wireless Activity Sleep Wristband, Set of 15 with 12 Piece Colorful Silicon Fastener Ring. Sports...
J: Kodak MAX KCR2-2 Lithium Photo Battery, 2 Pack. Electronics. Camera & Photo. Kodak.
K: Luna Bazaar Light Purple Lillian Faceted Glass Candle Holder. Home & Kitchen. Home Dcor. Luna Bazaar.
L: Christmas Nativity Lighted Stable for 14" Nativity Set. Home & Kitchen. Home Dcor. Three Kings Gifts.
M: Corelle Bandhani 18-Ounce Bowl Set (6-Piece). Home & Kitchen. Kitchen & Dining. Corelle.
N: GyroVu Professional 1/4" Mini Quick Release Plate System for any Tripod, Articulated Arm Mount with to 4 lb capacity. Electronics. Camera & Photo. GyroVu.
O: Bear Archery Brave Bow Set. Sports & Outdoors. Sports & Fitness. Bear Archery.
P: Blue Whale - da Vinci (9x12 Art Print, Wall Decor Travel Poster). Home & Kitchen. Wall Art. Lantern Press.
Q: Kate Aspen"About To Pop" Popcorn Favor Box - Set of 24. Home & Kitchen. Event & Party Supplies. Kate Aspen.
R: Robe or Coat Hook White (12 Pack). Home & Kitchen. Storage & Organization. Allison.
S: Sta Tru Steel Hub Front Wheel (26X1.75-Inch). Sports & Outdoors. Outdoor Recreation. Sta Tru.
T: Dell E1715S E Series 17'' LED-Backlit LCD Monitor, Black. Electronics. Computers & Accessories. Dell.


assistant
Answer: O