Instruction: Evaluate the titles of Product 1 and Product 2, then choose the option that best describes the relation between the two products.

Input:
Product 1: Pioneer GM-D8601 4 Gauge 1600W Monoblock Class-D Car Amplifier + Amplifier Wiring Kit**
Product 2: Pioneer TS-W3003D4 Champion Series Pro Subwoofer with Dual 4 ff Voice Coils and 2000W Max Power(one speaker)

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