Instruction: Predict whether two products are similar, whether two products are likely to be purchased or viewed together based on their titles. Choose your answer from the provided options.

Input:
Product 1: Polk Audio AA3104-A MM1040 10-Inch Subwoofer
Product 2: Polk Audio PA D5000.5 900W RMS, 5-Channel Class D PA Series Car Amplifier (PAD5000.5),100 Watts x4; 400 Watts x1

Options:
A: Users who buy product 1 may also buy product 2.
B: Users who view product 1 may also view product 2.
C: The product 1 is similar with the product 2.
Answer: A