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: BlackRapid RSD-1BB Double (DR-1 Double Strap) (Black). Electronics. Camera & Photo. BlackRapid.
2nd: Nikon EN-EL4a Rechargeable Li-Ion Battery for MB-D10 Battery Pack and Nikon D2 and D3 Digital SLR Cameras - Retail Packaging. Electronics. Camera & Photo. Nikon.
3rd: Nikon 200-500mm f/5.6E ED AF-S VR Zoom NIKKOR Lens - U.S.A. Warranty - Bundle with 95mm Filter Kit, Flex Lens Shade, Cleaning Kit, Cap Leash,...

Options:
A: Cuisinart DLC-4CHB Mini-Prep Plus 4-Cup Food Processor. Home & Kitchen. Kitchen & Dining. Cuisinart.
B: IZON 2.0 Stem Wi-Fi Video Monitor Surveillance for iOS 5.0+ and Android 4.2+. Electronics. Security & Surveillance. Stem Innovation.
C: Kitchen Creations Gumball Machine. Home & Kitchen. Kitchen & Dining. Kitchen Creations.
D: Black Occasional Console Sofa Table Bookshelf. Home & Kitchen. Furniture. eHomeProducts.
E: Allavino FlexCount VSWR56-2SSRN - 56 Bottle Dual Zone Wine Refrigerator with Right Hinge Built-In. Home & Kitchen. Kitchen & Dining. Allavino.
F: Lipper International 8896 Bamboo Wood Custom Fit Adjustable Kitchen Drawer Dividers, Set of 2. Home & Kitchen. Kitchen & Dining. Lipper International.
G: Realalt 3DTriFit 3D Pedometer Activity Tracker | Best Pedometer for Walking with Pause Function & 7-Day Memory for Men & Women. Fitness Tracker Accurately Monitors...
H: Champion Two-Tone Rear Pre-Filled Sand Bag . Sports & Outdoors. Sports & Fitness. Shooters Ridge.
I: Crosman PRO77 Kit air pistol. Sports & Outdoors. Sports & Fitness. Crosman.
J: MTech Dragon Fury Pocket Knife - Blue. Sports & Outdoors. Sports & Fitness. Top Swords.
K: Chloe Lighting PEACOCK, Tiffany-style Peacock Feather Glass Window Panel 35x18. Home & Kitchen. Home Dcor. Chloe Lighting.
L: Hampton Forge HMC01B550G 10-Piece Tomodachi Knife Block Set. Home & Kitchen. Kitchen & Dining. Hampton Forge.
M: GetWetStore Silicone Snorkel Keeper (piece). Sports & Outdoors. Outdoor Recreation. GetWetStore.
N: HemingWeigh Exercise Balance Pad, Non-Slip Textured Surface - Cushioned Foam Mat and Knee Pad - Perfect for Stability Training, Yoga, and Physical Therapy. Sports &...
O: Knog Blinder 1 USB Standard Rechargeable Light. Sports & Outdoors. Outdoor Recreation. KNOG.
P: Athlé Skinny Sports Headbands 6 Pack - Men’s and Women’s Elastic Hair Bands with Non Slip Silicone Grip - Lightweight and Comfortable Sweatbands Keep You...
Q: Samsung 128GB up to 48MB/s EVO Class 10 Micro SDXC Card with Adapter (MB-MP128DA/AM). Electronics. Computers & Accessories. Samsung.
R: Samsung Galaxy S-Pen Stylus Pen for Galaxy Note (Not compatible with Note 2, Note 3, Note 10.1) (Discontinued by Manufacturer). Electronics. Computers & Accessories. Samsung.
S: HP J5N50UT Chromebox Desktop Computer (Intel Celeron 2955U 1.40 GHz 4GB RAM 16GB SSD)- Mini PC. Electronics. Computers & Accessories. HP.
T: Samsung L100 8.2MP Digital Camera with 3x Optical Zoom (Red). Electronics. Camera & Photo. Samsung.


assistant
Answer: B