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: LifeSpan Fitness Heart Rate Monitor Ring (Colors may Vary). Sports & Outdoors. Sports & Fitness. LifeSpan.
2nd: Ergon PC2 Pedal. Sports & Outdoors. Outdoor Recreation. Ergon.
3rd: Ritchey Design Rim Tape. Sports & Outdoors. Outdoor Recreation. Ritchey.
4th: Mirrycle Road STI Bicycle Mirror - Only Compatible w/ 2010 or older. Sports & Outdoors. Outdoor Recreation. Mirrycle.
5th: Terry Womens Liberator X Gel Black. Sports & Outdoors. Outdoor Recreation. Terry.
6th: Rohloff Speedhub Oil Change Kit . Sports & Outdoors. Outdoor Recreation. Rohloff.
7th: Ritchey DI2 Seatpost Battery Mounts. Sports & Outdoors. Outdoor Recreation. Ritchey.
8th: Park Tool Home Mechanic Repair Stand - PCS-10. Sports & Outdoors. Outdoor Recreation. Park Tool.
9th: Giro Aspect Road Cycling Helmet. Sports & Outdoors. Outdoor Recreation. Giro.
10th: Stylish Camping Full Back Folding Director's Chair. Sports & Outdoors. Outdoor Recreation. Stylish Camping.

Options:
A: Sony LCSTWP/P Compact Carrying Case for Cyber-Shot Digital Camera (Pink). Electronics. Camera & Photo. Sony.
B: Mountainsmith Modular Hauler System. Sports & Outdoors. Outdoor Recreation. Mountainsmith.
C: Polaroid Tulip Lens Hood 37mm. Electronics. Camera & Photo. Polaroid.
D: Nestling X2 CREE XM-L U2 LED Rechargeable Waterproof 5000Lm Black Bicycle Bike Light headlamp + 1x Free 5 LED Tail Light with Install Holder +...
E: Goture Stainless Steel Fishing Hooks Long Shank Hooks Extra Strong for Saltwater Freshwater Size 6/0-12/0 10Pcs. Sports & Outdoors. Sports & Fitness. Goture.
F: Cordless Phone Battery, WDLAND 800 mah, 2.4V Rechargeable Replacement Battery for BT-1008 ( 2 Packs ). Electronics. Accessories & Supplies. WDLAND.
G: TCC TC-780LC Stereo Line Level Amp / Booster with iPod Jack; BLACK VERSION. Electronics. Home Audio. Phono Preamps.
H: Riedel Sommeliers Anniversary Bordeaux Glasses. Home & Kitchen. Kitchen & Dining. Riedel.
I: Beautiful Space Galaxy Shower Curtain - Hotstyle Nebula Cosmos Outer Space Galaxy Bathroom Shower Curtains Polyester Waterproof 60 Wide x 72 High. Home & Kitchen...
J: Kings Brand Furniture Wood Shoe Storage Bench with Cushion Seat, Espresso. Home & Kitchen. Furniture. Kings Brand Furniture.
K: Tom & Co. 10 Wholesale White Fancy Lantern with Stand Wedding Centerpieces. Home & Kitchen. Home Dcor. Tom & Co.
L: New 105 Skin Tights Compression Leggings Base Layer Black Running Pants Womens. Sports & Outdoors. Sports & Fitness. JustOneStyle.
M: Two Halcyon 3200 mAH Lithium Ion Replacement Battery and Charger Kit for Canon VIXIA HF10, HF11, HF100, HF20, HF200, HFS10, HFS100, HFS20, HFS21, HFS200, HG20,...
N: Update International AS-12 SET OF 2, 12 Oz. (Ounce) Bar Ice Scoop, Dry Bin Scoop, Dry Goods Scoop, Candy Scoop, Spice Scoop, Cast Aluminum. Home...
O: Mega Cap 6886 Men's Five Panel Pet Mesh Back Trucker. Sports & Outdoors. Outdoor Recreation. Mega Cap.
P: Under Armour Men's Friend Or Foe Stretch Fit Cap. Sports & Outdoors. Sports & Fitness. Under Armour.
Q: SMK-Link Ultra Mini Compact Wireless Travel Mouse (VP6152). Electronics. Computers & Accessories. SMK-Link.
R: Guide Gear Low-back Boat Seat. Sports & Outdoors. Sports & Fitness. Guide Gear.
S: Corsair Vengeance Pro Series Red 8GB (2x4GB) DDR3 1866 MHZ (PC3 15000) Desktop Memory. Electronics. Computers & Accessories. Corsair.
T: Park Designs Bear Tracks Lined Valance, 60 x 14. Home & Kitchen. Home Dcor. Park Designs.


assistant
Answer: B