Instruction: Evaluate the titles of Product 1 and Product 2 to assess their similarity and whether they are likely to be purchased or viewed together. Then, select the appropriate option.

Input:
Product 1: Logitech X-540 5.1 Surround Sound Speaker System with Subwoofer
Product 2: Pyle PT798SBA 7.1 Channel Home Theater System with Satellite Speakers, Center Channel, Subwoofer and Bluetooth

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: C