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: 5 Tier Pan Organizer. Home & Kitchen. Kitchen & Dining.
2nd: Toastmaster TEK17W 1.7 L Kettle. Home & Kitchen. Kitchen & Dining. Toastmaster.

Options:
A: ErgoPad Epad Ergonomic 2" Shoulder Strap Pad in Black. Electronics. Camera & Photo. ErgoPad Epad.
B: Hip Street God Of War 8 GB USB Drive (HS-USBSNY-8GOW). Electronics. Computers & Accessories. Hipstreet.
C: Sylvania 4 GB Video MP4 Player with Full Color Screen (Black). Electronics. Portable Audio & Video. Curtis.
D: Galaxy Tab S2 9.7 intelliGLASS HD - The Smarter Samsung Glass Screen Protector by intelliARMOR To Guard Against Scratches and Drops. HD Clear With Max...
E: Kensington 62630A Guardian Basic Power Strip and Surge Protector. Electronics. Accessories & Supplies. Kensington.
F: AT&T 25-Ft. Line Cord (White). Electronics. Accessories & Supplies. ATT.
G: SPARC HD Radio SHD-TR05R Portable Table Top Radio with Built-in FM & HD Radio Tuners. Electronics. Portable Audio & Video. SPARC RADIO.
H: Oak Infusion Spiral 9U-AQSI-Z3EY2 Pack - Barrel Aged in a Bottle Barrel Age Your Whiskey - Bourbon - Wine - Favorite Alcohol in Days, Improve...
I: Skins Men's Ry400 Recovery Long Tights. Sports & Outdoors. Sports & Fitness. Skins.
J: Metolius 8-Step Ladder Aider with 1" Webbing (Blue). Sports & Outdoors. Outdoor Recreation. Metolius.
K: Stacking Lunch Box - Two Tier Tiffin w/Vacuum Seal Lid & Stainless Steel Interior and Built in Carrying Handles - BPA Free. Home & Kitchen...
L: WD 1TB Silver My Passport for Mac Portable  External Hard Drive  - USB 3.0  - WDBLUZ0010BSL-NESN. Electronics. Computers & Accessories. Western Digital.
M: Command 1 Hook 2 Strips Outdoor Forever Classic Large Metal Hook. Home & Kitchen. Storage & Organization. Command.
N: Buffalo LinkStation Pro Quad 4-Bay 4 TB (4 x 1 TB) RAID High Performance Network Attached Storage (NAS) - LS-QV4.0TL/R5. Electronics. Computers & Accessories. BUFFALO.
O: Witz Lens Locker Waterproof Case. Sports & Outdoors. Outdoor Recreation. Witz.
P: Steren 205-550 50-Feet BNC-BNC RG58 Cable. Electronics. Accessories & Supplies. STEREN.
Q: Sunleaf Naturals Mini Diffuser Rosy Geranium, 1 Fluid Ounce. Home & Kitchen. Home Dcor. Sunleaf Naturals.
R: Panasonic NN-SN933W White 1250W 2.2 Cu. Ft. Countertop Microwave Oven with Inverter Technology. Home & Kitchen. Kitchen & Dining. Panasonic.
S: Clothes Effect USA Made Ladies Rolled Waist Flare Capri/Full Length Yoga Pants, Solids & Color Block Available. Sports & Outdoors. Sports & Fitness. Clothes Effect.
T: Elegant Home Fashions Chesterfield Collection Floor Cabinet with One Door and One Drawer, Espresso. Home & Kitchen. Furniture. Elegant Home Fashions.


assistant
Answer: R