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: Polk Audio PSW10 10-Inch Powered Subwoofer (Single, Black). Electronics. Home Audio. Polk.
2nd: Polk Audio PSW505 12-Inch Powered Subwoofer (Single, Black). Electronics. Home Audio. Polk Audio.

Options:
A: Universal Power Strip 6 Outlets - 100V to 220V/250V and 2500 Watts Surge Protector - With circuit breaker - For Worldwide Use. Electronics. Accessories &...
B: 5th Element Panther XT Mens Recreational Inline Skates, Black and White Rollerblades. Sports & Outdoors. Outdoor Recreation. 5th Element.
C: The Party Popper(TM) 2-Pack - Tie-Dye/Red. Home & Kitchen. Kitchen & Dining. LTD.
D: Coleman 40-Quart Wheeled Cooler. Sports & Outdoors. Outdoor Recreation. Coleman.
E: Veho Muvi Universal Professional Triple Cup Suction Mount for Muvi KX-Series | Muvi K-Series | Muvi HD | Muvi Micro - Black (VCC-A027-3SM). Electronics. Camera...
F: 10'' Tablet Windows PC from Fusion5, Now in Windows 10, Intel Baytrail-T CR (Quad-Core) Z3735F, Touch Screen, Bluetooth, Dual Camera, 1GB DDR3, 16GB ROM, (10''...
G: OXO Good Grips Sink Mat, Small - NEWER MODEL AVAILABLE. Home & Kitchen. Kitchen & Dining. OXO.
H: Sip N Go USA Spill-Proof Bottle. Sports & Outdoors. Sports & Fitness. Sip N Go.
I: Corsair 2GB (1x2GB) DDR2 800 MHz (PC2 6400) Desktop Memory. Electronics. Computers & Accessories. Corsair.
J: Set of 2 Solid Blue standard pillowcases 300 thread count 100% Cotton by sheetsnthings. Home & Kitchen. Bedding. sheetsnthings.
K: Onkyo TX-SR806 7.1 Channel Home Theater Receiver (Silver) (Discontinued by Manufacturer). Electronics. Home Audio. Onkyo.
L: Louis Garneau Elite Gloves. Sports & Outdoors. Outdoor Recreation. Louis Garneau.
M: LOCK & LOCK 26-Fluid Ounce Round Sauce Container, Tall, 3.2-Cup. Home & Kitchen. Kitchen & Dining. LOCK & LOCK.
N: Magnetized Shower Curtain Liner Mildew Resistant (Clear). Home & Kitchen. Bath. DINY Bath Elements.
O: CoolDream Cotton Linen Square Decorative Throw Pillow Case Cushion Cover Retro Vintage Owl With Sun (16inch). Home & Kitchen. Bedding. CoolDream.
P: VERY100 30mm Offset Scope Mount with 1" Inserts Picatinny QD Cam Locks. Sports & Outdoors. Sports & Fitness. VERY100.
Q: Hallmark 2014 Glad Tidings Nativity Peanuts Gallery Figurines - Set of 7 - XKT2422. Home & Kitchen. Home Dcor. Hallmark.
R: Look Keo 2 Max Pedal - Carbon. Sports & Outdoors. Outdoor Recreation. Look.
S: Lyman Turbo Brass/Media Separator. Sports & Outdoors. Sports & Fitness. Lyman.
T: adidas Stretchfit Training Gloves. Sports & Outdoors. Sports & Fitness. adidas.


assistant
Answer: K