Instruction: Analyze the titles of Product 1 and Product 2 to determine if they are similar, if they will be purchased or viewed together, and choose the corresponding option.

Input:
Product 1: Authentic iRobot Parts - Roomba 800 &amp; 900 Series Spinning Side Brushes - 3 Pack
Product 2: iRobot Authentic Parts Dual Mode Virtual Wall Barrier Compatible with Roomba 600/700/800/900 Series

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