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: Based on the user's historical purchases, rank the items in options and predict the next product of the user's interest from the provided options.

Input:
Purchase History:
1st: Opteka OPT7000 74-inch Professional Tripod for All Canon Sony, Nikon, Samsung, Panasonic, Olympus, Kodak, Fuji Cameras and Camcorders. Electronics. Camera & Photo. Opteka.
2nd: Sigma 150-600mm 5-6.3 Contemporary DG OS HSM Lens for Canon DSLR Cameras w/Sigma USB Dock & Advanced Photo and Travel Bundle. Electronics. Camera & Photo...
3rd: Canon EF-S 18-135mm f/3.5-5.6 IS STM Zoom Lens (White Box) Kit for Canon EOS 7D, 60D, EOS Rebel SL1, T1i, T2i, T3, T3i, T4i, T5i...
4th: Benro B1 Double Action Ballhead. Electronics. Camera & Photo. Benro.
5th: Canon EF 50mm f/1.8 STM Lens + 3pc Filter Kit + Lens Pen + Blower + Hood + Lens Pouch + Cap Keeper. Electronics. Camera...
6th: Mcoplus Professional Heavy Duty Metal 360 Degree Panoramic Gimbal Tripod Head with Arca-Swiss Standard Quick Release Plate for Digital SLR Cameras. Electronics. Camera & Photo...
7th: ProCase Samsung Galaxy Tab A 9.7 Case - Standing Cover Folio Case for 2015 Galaxy Tab A Tablet (9.7 inch, SM-T550 P550), with Multiple Viewing...
8th: Canon EF 75-300mm f/4-5.6 III Telephoto Zoom Lens for Canon SLR Cameras (Certified Refurbished). Electronics. Camera & Photo. Canon.

Options:
A: Universal Jurassic World Dinosaur Strength Shaped Cuddle Pillow. Home & Kitchen. Bedding. Universal.
B: Vickerman 24" Vienna Twig Artificial Christmas Tree with 20 Clear Lights. Home & Kitchen. Seasonal Dcor. Vickerman.
C: Sigma USB Dock for Nikon. Electronics. Camera & Photo. Sigma.
D: MLB V-Neck Jersey. Sports & Outdoors. Fan Shop. Stitches.
E: 5x8 Vintage Style Sign Saying, "Please Leave Your Shoes at the Door. BARE FOOT GUESTS ARE THE BEST!". Home & Kitchen. Home Dcor. Egbert's Treasures.
F: I Love how we don't even need to say it loud that I'm your favorite child - Coffee Mug © By Heaven Creations 11 oz...
G: 12 Piece Exclusive Wine Bags, 3 Organic Designs. Home & Kitchen. Kitchen & Dining. Heart Paper Products.
H: Baleaf Women's 3D Padded Bicycle Cycling Underwear. Sports & Outdoors. Outdoor Recreation. Baleaf.
I: Park Designs Scroll Bath Towel Holder. Home & Kitchen. Bath. Primitive Home Decors.
J: Samsung HT-WS1G Soundbar. Electronics. Home Audio. Samsung.
K: Do-It Bank Sinker Mold Assorted Sinker Sizes. Sports & Outdoors. Sports & Fitness. Do-It Molds.
L: O2 Cool Mist 'N Sip Drinking and Misting Bottle ArcticSqueeze Classic - 20oz,. Sports & Outdoors. Sports & Fitness. O2COOL.
M: Aeris Donut Pillow - Best Memory Foam Seat Cushion with Machine Washable Blue Plush Velour Cover. Home & Kitchen. Kitchen & Dining. AERIS.
N: Samsung 32GB Class 10 MicroSDHC Ultra High Speed Memory Card 75MB/s Read 20MB/s Write with Komputerbay SD Adapter. Electronics. Computers & Accessories. Tiamat.
O: Kind Shock Adjustable Seatpost 31.6mmx385mm Travel: 100mm 20mm Offset Handlebar Remote, Black. Sports & Outdoors. Outdoor Recreation. Kindshock.
P: Chromium Crusher 2.5 Inch 4 Piece Tobacco Spice Herb Grinder- Rasta (2.5"). Home & Kitchen. Kitchen & Dining. Chromium Crusher.
Q: Pebble Smartwatch Black. Electronics. Wearable Technology. Pebble Technology Corp.
R: Rifle Targets. Sports & Outdoors. Sports & Fitness. ShootingTargets7.
S: Wireless Bluetooth Headset SPORT Stereo Headphone Earphone Music Stereo Earpieces (white). Electronics. Headphones. Qable Powerz(TM).
T: Assurant 3-Year Home Improvement Protection Plan ($75-$99.99). Electronics. Electronics Warranties. Assurant Solutions.


assistant
Answer: C