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: Sony ZSBTY50 Portable NFC Bluetooth Wireless Boombox Speaker System. Electronics. Portable Audio & Video. Sony.
2nd: Gigabyte GA-Z87X-UD3H Desktop Motherboard - Intel Z87 Express Chipset- LGA-1150. Electronics. Computers & Accessories. Gigabyte.
3rd: Sony ECMXYST1M Stereo Microphone (Black). Electronics. Camera & Photo. Sony.

Options:
A: Rowenta IS9200 Precision Valet Commercial Retractable Full Size Garment and Fabric Steamer  with Automatic Cord Rewinder Accessories, 1550-Watt, Silver. Home & Kitchen. Irons &...
B: Ceramic plug-in night light aroma wax melter by Darice. Home & Kitchen. Home Dcor. Darice.
C: New Sunrise Metal Twin-over-Twin Bunk Bed in White Finish. Home & Kitchen. Furniture. Home Accent Furnishings.
D: Static Master Brush 1 - Inch. Electronics. Camera & Photo. Static Master.
E: LEFV™ Laundry Basket Deluxe Pop Up Mesh Hamper Clothes Sorter Folding Storage Tote Bag Case Open Bin - Multi Use for Toys Dirty Tidy Clothes...
F: American Weigh Scales AWS-1KG-BLK Signature Series Black Digital Pocket Scale, 1000 by 0.1 G, With Seaside 500 Gram Stainless Steel Calibration Weight. Home & Kitchen...
G: Becko 10-Rib Fast-Dry Foldable Travel Umbrella with 210t Fabric Teflon, Reinforced Windproof Frame - Auto Open/Close, Easy Carry (Black) … (Black). Sports & Outdoors. Sports...
H: Neewer NW-BLS1 USB Battery Charger for Olympus PS-BLS1, BLS-5, Fuji FNP140 Battery and E-PL1, E-P3, E-PL3, E-P1, E-P2, Evolt E-400, Evolt E-420, Evolt E-410, Evolt...
I: Fallkniven A1pro Plain Edge Fixed Blade Knife, Black. Sports & Outdoors. Sports & Fitness. Fallkniven.
J: Unique 12" Latex Despicable Me Balloons, 8ct. Home & Kitchen. Event & Party Supplies. Unique.
K: VM Audio SRSK4B 4 Gauge Ga Car Amplifier Amp Wiring Kit+ 2 Farad Power Capacitor. Electronics. Accessories & Supplies. VM Audio.
L: Franklin Sports Tuukka Rask Street Hockey Goalie Stick. Sports & Outdoors. Sports & Fitness. Franklin Sports.
M: MegaGear ''Ultra Light'' Neoprene Camera Case Bag for Sony NEX-6, Sony NEX-7, Sony NEX-F3 with 16-50mm Lens (Red). Electronics. Camera & Photo. MegaGear.
N: Samsung Galaxy Tab S 10.5 Inch Tablet, 32GB, Titanium Bronze (SM-T800NTSEXAR). Electronics. Computers & Accessories. Samsung.
O: Adore June - Keeb - Case / Sleeve for Logitech Wireless Solar Keyboard K760. Electronics. Computers & Accessories. Adore June.
P: SPARIN NVIDIA Shield Tablet K1 Screen Protector For NVIDIA Shield Tablet K1 8 Inch, [.3mm / 2.5D] [Tempered Glass] [Repeatable Installation]. Electronics. Computers & Accessories...
Q: ArtToFrames 8x10 inch Gold with beads Wood Picture Frame, WOMD10051-8x10. Home & Kitchen. Home Dcor. ArtToFrames.
R: AOC C2783FQ 27-Inch Class CURVED LED-Lit Monitor, Full HD 1920 x 1080 Resolution, 5ms, 50M:1 DCR, 300cd/m2 Brightness, VGA / DVI / HDMI w/MHL /...
S: Fotodiox Dedicated (Bayonet) Lens Hood, for Nikon 18-135mm DX, 18-70mm f/3.5-4.6G Lens (replaces Nikon HB-32). Electronics. Camera & Photo. Fotodiox.
T: Ecobags Reusable Grocery Earthtone (5 Pack). Home & Kitchen. Kitchen & Dining. Ecobags.


assistant
Answer: M