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: GEEKPRO 5in1 Accessories Starter Kit Head/Chest Strap, Floating Bar, Monopod for GoPro, Geekpro, ANART, ASX Action Camera. Electronics. Camera & Photo. GEEKPRO.
2nd: Aduro Amplify Pro SBN45 Wireless Stereo Bluetooth Around The Neck Earbud Headphone Headset (Black/Grey). Electronics. Headphones. Aduro.
3rd: Bluetooth Headphone, Blled Wireless Noise Cancelling In-Ear Earbuds with MIC and High Quality Stereo Sound Earphone (Black). Electronics. Headphones. Blled.
4th: Neewer Flash Mount Three Umbrellas Kit (2) 33"/84cm White Soft/Silver Reflective/Gold Reflective Umbrella for Canon 430EX II,580EX II,Nikon SB600 SB800,Yongnuo YN 560,YN 565,Neewer TT560,TT680. Electronics...
5th: Uarter Opera Glasses Theater Vintage Binoculars with Chain Necklace Gray-Silver. Electronics. Camera & Photo. Uarter.

Options:
A: Nikon Coolpix S630 12MP Digital Camera with 7x Optical Vibration Reduction (VR) Zoom and 2.7 inch LCD (Midnight Blue). Electronics. Camera & Photo. Nikon.
B: West Bend 56911 Steep & Brew Coffee Maker Features Programmable Auto Shut-Off with Bold Settings Permanent Mesh Filter and Glass Carafe, 12-Cup, Black. Home &...
C: BESTEK Premium 3 Port HDMI Switcher with IR Wireless Remote and AC Power Adapter, Supports 3D, Black. Electronics. Accessories & Supplies. BESTEK.
D: Fanci-Fetti 40 Silhouettes (multi-color) Party Accessory  (1 count) (.5 Oz/Pkg). Home & Kitchen. Event & Party Supplies. Beistle.
E: geckobrands Waterproof 30L Lightweight Backpack- Black/Grey. Sports & Outdoors. Outdoor Recreation. geckobrands.
F: American Metalcraft MTSH5 Stainless Steel Mini Taco Holder, 4-5 Compartments, 6.95" x 2", Silver. Home & Kitchen. Kitchen & Dining. American Metalcraft.
G: Premium Silicone Swim Cap for Long Hair Swim Cap for Men and Women + Free Nose Clip (Black).
H: Elevation Dock for iPhone 5. Electronics. Portable Audio & Video. Elevation Lab.
I: Stainless Steel Push Button Carafe. Home & Kitchen. Kitchen & Dining. Thermos.
J: GeChic 1302 13.3" Portable Monitor with HDMI, VGA, MiniDisplay Inputs. Electronics. Computers & Accessories. Gechic.
K: Conntek 15 Amp 125-Volt NEMA 5-15P Straight Blade Flanged Inlet. Sports & Outdoors. Sports & Fitness. Conntek.
L: Axis M1034-W 0522-004 Wireless HDTV Network Camera. Electronics. Camera & Photo. AXIS.
M: Set of 4 Vinyl Siding Hooks Hook Shape: Adjustable 'S' Shaped Hooks. Home & Kitchen. Storage & Organization. Santa's Solution.
N: Global Decor 1675 12-Piece Glass Olive Pick Set. Home & Kitchen. Kitchen & Dining. Global Dcor.
O: KinGHonor Zester Grater with Sharp Stainless Steel Blade ,Safety Cover ,Ergonomic Handle +Cleaning Brush ,Lemon Zester & Cheese Grater - Dishwasher Safe. Home & Kitchen...
P: TANGCHU Russian Piping Tips Large Size Icing Syringe Set DIY Coupler Nozzle (8 PCS). Home & Kitchen. Kitchen & Dining. TANGCHU.
Q: Guidecraft Wood Hand-Painted Jungle Party Themed Step-Up, Kids Room Furniture. Home & Kitchen. Furniture. Guidecraft.
R: Nomacorc Synthetic Wine Corks #9 x 1 1/2" Bag of 30. Home & Kitchen. Kitchen & Dining. Midwest Homebrewing and Winemaking Supplies.
S: Cotton MySoftCover Headset Cover to fit LG Tone/Pro/Ultra/INFINIM (Short Style Black). Electronics. Headphones. MySoftCover.
T: Saganizer carpet sweeper and floor sweeper High Quality sweepers Workhorse sweeper. Home & Kitchen. Vacuums & Floor Care. Saganizer.


assistant
Answer: C