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: iBasso DX90 High Resolution Dual Sabre ES9018K2M DACs with Extreme Audio USB Charger & Coaxial Connection Kit [Full USA One Year Warranty from Authorized iBasso...
2nd: SanDisk Ultra 64GB UHS-I/Class 10 Micro SDXC Memory Card With Adapter- SDSDQUAN-064G-G4A [Old Version]. Electronics. Computers & Accessories. SanDisk.
3rd: Samsung NX500 28 MP Wireless Smart Mirrorless Digital Camera with 16-50mm Power Zoom Lens (Black). Electronics. Camera & Photo. Samsung.
4th: Canon EOS M3 Mirrorless Camera Kit with EF-M 18-55mm Image Stabilization (IS) STM Lens - Wi-Fi Enabled (White). Electronics. Camera & Photo. Canon.
5th: Sennheiser HD 700 Headphone (Jack plug ¼” (6.3 mm) stereo). Electronics. Headphones. Sennheiser.
6th: FiiO E12A Mont Blanc IEM Special Edition Portable Headphone Amp, Titanium. Electronics. Accessories & Supplies. FiiO.
7th: FiiO EX1 Aerospace Nanotech Titanium Diaphragm in-Ear Monitors, Black. Electronics. Headphones. FiiO.
8th: Astell&Kern AK120 Mastering Quality Sound Portable Dual DAC Hi-Fi Audio System. Electronics. Portable Audio & Video. Astell&Kern.
9th: FiiO L16 Stereo Audio Cable with 1/8" TRS Connectors (2.2"). Electronics. Accessories & Supplies. FiiO.
10th: Canon EF-M 11-22mm f/4-5.6 STM Lens. Electronics. Camera & Photo. Canon.
11th: Samsung 64GB 80MB/s EVO Select Micro SDXC Memory Card (MB-ME64DA/AM). Electronics. Computers & Accessories. Samsung.
12th: iBasso DX80 High Resolution Audio Player with Extreme Audio USB/Mobile Charger Kit [USA One Year Warranty Included]. Electronics. Portable Audio & Video. iBasso.
13th: Oral B Toothbrush Hard Travel Case Carrying Bag, Fits for Oral-B Pro 1000, Pro 2000, Pro 3000, Pro 1500 Electric Toothbrush, Mesh Pocket for Accessories...
14th: FiiO Right-Angle 3.5mm Stereo Audio Cable (L17). Electronics. Accessories & Supplies. FiiO.
15th: Cayin C5 Portable HIFI Audio Headphone Amplifier. Electronics. Accessories & Supplies. CAYIN.
16th: Oppo HA-2 Portable Headphone Amplifier & DAC. Electronics. Accessories & Supplies. OPPO Digital.
17th: Newmowa Dual USB Charger for Canon LP-E6, LP-E6N and Canon EOS 5DS R, EOS 5DS, EOS 5D Mark IV, EOS 5D Mark III, EOS 5D...
18th: Sennheiser HD 600 Open Back Professional Headphone. Electronics. Headphones. Sennheiser.
19th: Samsung NX 12-24mm f/4.0-5.6  Camera Lens  (Black). Electronics. Camera & Photo. Samsung.
20th: Hoya 58mm PRO1 Digital UV Multi-Coated Glass Filter. Electronics. Camera & Photo. Hoya.
21st: B+W 62mm XS-Pro Clear UV Haze with Multi-Resistant Nano Coating (010M). Electronics. Camera & Photo. B + W.

Options:
A: OPUS#1 Portable Mastering Quality Sound (MQS) Audio Player(Gunmetal Color) with Leather Case. Electronics. Portable Audio & Video. OPUS.
B: Asobu Imperial Wine Insulated Cup, Pink. Home & Kitchen. Kitchen & Dining. asobu.
C: Triple flange, trilevel - Earphones Plus brand replacement ear cushions made to fit Klipsch, Shure, Etymotic and other models requiring a 2mm attachment diameter. Black,...
D: Muhammad Ali Tin Metal Sign . Home & Kitchen. Wall Art. Poster Revolution.
E: Box Sign Long Tissue Box, God Bless You. Home & Kitchen. Home Dcor. Primitives by Kathy.
F: Aurum Cables Network Cable Boots Cap Cover for RJ45 Connectors CAT6 Pack of 200. Electronics. Computers & Accessories. Aurum Cables.
G: Nickelodeon Teenage Mutant Ninja Turtles "Turtles Rule" 14 Piece Bath Set. Home & Kitchen. Kids' Home Store. Nickelodeon.
H: Update International (LOP-20SH) 2 oz 1-Piece Stainless Steel Ladle. Home & Kitchen. Kitchen & Dining. Update International.
I: Lillian Rose 25th Anniversary Number Wine Cork. Home & Kitchen. Kitchen & Dining. Lillian Rose.
J: Large Brown Leather Sheath for Fixed Blade Knife Fits up to 6in Blade Knives Hunting Skinning Blanks. Sports & Outdoors. Sports & Fitness. Whole Earth...
K: LaCie Rugged Mini 1TB USB 3.0 / USB 2.0 Portable Hard Drive + 1mo Adobe CC All Apps (LAC301558). Electronics. Computers & Accessories. LaCie.
L: Otis Shotgun Cleaning Kit (.410-10 Gauge). Sports & Outdoors. Sports & Fitness. Otis Technology.
M: Schwalbe Marathon Winter Tire. Sports & Outdoors. Outdoor Recreation. Schwalbe.
N: iPad Air 2 Case, i-Blason Apple iPad Air 2 Case [2nd Generation 2014 Release] i-Folio Slim Hard Shell Stand Case Cover [Life Time Warranty] for...
O: Vintage Style Two Tiered Vegetable Basket Stand- Shabby Chic Country Home Decor. Home & Kitchen. Storage & Organization. Park Hill.
P: World Map - Palm Rest Sticker Decal For MacBook Pro, PC, Laptop, Window, Car, or Wall. Electronics. Computers & Accessories. StickAny.
Q: Fruit And Wine Vineyard Metal Wall Art. Home & Kitchen. Home Dcor. Collections Etc.
R: Mexican Cast Iron Electric Corn or Flower Tortilla Maker Gorditas Bunuelos. Home & Kitchen. Kitchen & Dining. always-quality.
S: Hydrometer (Beer/Wine) & Glass Test Jar - Brewing Supplies & Home Brew Wine Making Equipment - Triplescale Tester Measures Specific Gravity ABV, Brix, Balling with...
T: Kraken Aquatics Swimmer's Snorkel with Comfortable Silicone Mouthpiece and One-Way Purge Valve for Swimming Gear, Training and Therapy | Blue. Sports & Outdoors. Outdoor Recreation...


assistant
Answer: A