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: Portta N3SWT31 HDMI Mini Switch/Switcher 3 Port 3x1 with IR Remote and Key-Press-Switching support Full HD 1080p / 4K. Electronics. Accessories & Supplies. Portta.
2nd: Bolkin Defender Series Hybrid Armor Shockproof Case Cover for Apple Ipad Air (Purple/black). Electronics. Computers & Accessories. Bolkin.
3rd: IVSO Toshiba Encore WT8-A32/A64 Bluetooth Keyboard Portfolio Case- DETACHABLE Bluetooth Keyboard Stand Case / Cover for Toshiba Encore WT8-A32/A64 Tablet (Black). Electronics. Computers & Accessories...
4th: ASUS Transformer Book 10.1 Inch 2 in1 Touch Laptop T100TA-H1-GR Grey 2Gb RAM, 32GB SSD, 500GB HDD, Win 8.1. Electronics. Computers & Accessories. Asus.
5th: AmazonBasics 3.5mm Male to Male Stereo Audio Aux Cable - 2 Feet (0.6 Meters). Electronics. Accessories & Supplies. AmazonBasics.

Options:
A: G.SKILL 32GB (2 x 16GB) Aegis DDR4 PC4- 17000 2133MHZ For Intel Z170 Desktop Memory Model F4-2133C15D-32GIS. Electronics. Computers & Accessories. G.Skill.
B: Crucial Technology CT25664AA800 2 GB 240-pin DIMM DDR2 PC2-6400 Memory Module. Electronics. Computers & Accessories. Crucial.
C: Pure Fiber Viscose Derived from Bamboo Sheet Set/California King/Blue. Home & Kitchen. Bedding. Pure Fiber.
D: 6-pack Replacement F25 Filter for Dirt Devil - Compatible with Dirt Devil Simpli-Stik Lightweight Corded Bagless Stick Vacuum, Dirt Devil F25, Dirt Devil 083405, Dirt...
E: Boston International Cocktail Napkin Caddy, Wave Design in Black. Home & Kitchen. Kitchen & Dining. Boston International.
F: Benchmade - Griptilian 551 Knife, American Sniper, Drop-Point Blade, Plain Edge, Coated Finish, Sand Handle. Sports & Outdoors. Outdoor Recreation. Benchmade.
G: Bluetooth Headphones,V.one V4.1 Wireless Sport Stereo Earphones Earbuds Headset w/Microphone for iPhone 6S/6/5/4 series, Samsung Devices, PC Laptops and Any Other Bluetooth Enabled Devices(Black). Electronics...
H: Bamboo Touch - 6pc Bed Sheet Set - Wrinkle Free - Deep Pockets (Queen, Light Blue). Home & Kitchen. Bedding. Aslan Trade.
I: Frozen Elsa Tiara jewels crown Silicone Mold Cake Decorating tools for Sugarcraft, Fondant, Resin, Polymer Clay, mints, soap decor, cupcake topper decorations, Crafting Projects Non...
J: Mason Cash Cane 6 inch Round Baker. Home & Kitchen. Kitchen & Dining. Mason Cash.
K: Buck Knives 284 Bantam One-Hand Opening Folding Knife. Sports & Outdoors. Sports & Fitness. Buck Knives.
L: YAHILL Adjustable Security Tactical Belt Heavy Duty Rescue Belt for Outdoor Sports and Hunting. Sports & Outdoors. Sports & Fitness. YAHILL.
M: Christmas Stockings for Women Men Adults Kids Girls Boys Cute Embroidered Stockings for Hanging Featuring Santa Snowman Reindeer Snowflakes Red and Green Design for Holiday...
N: SainSmart DDS Function Signal Generator Module Sine + Triangle + Square Wave + USB Cable (1HZ-500KHZ). Electronics. Computers & Accessories. SainSmart.
O: Furinno 11179GYW/BK, Coffee Table, French Oak Grey/Black. Home & Kitchen. Furniture. Furinno.
P: Milspec Secret Squirrel Vinyl Decal (SWAT (Black)). Sports & Outdoors. Sports & Fitness. Milspec.
Q: Logitech HD Pro Webcam C920, Widescreen Video Calling and Recording, 1080p Camera, Desktop or Laptop Webcam. Electronics. Computers & Accessories. Logitech.
R: SCIENCE & NATURE 12" Steel Hoop, 28" Deep Mesh Bag, with 20" Wooden Handle Butterfly Net. Sports & Outdoors. Sports & Fitness. SCIENCE & NATURE.
S: JanSport Ashland Waist Pack. Sports & Outdoors. Sports & Fitness. JanSport.
T: Glass Insulated Bottle,16 Ounce,Colors May Vary. Home & Kitchen. Kitchen & Dining. International Sales, Inc.


assistant
Answer: Q