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: Reverse Osmosis Revolution Whole House 3-Stage Water Filtration System, 3/4&quot; port with 2 valves and extra 3 filters set
Product 2: iSpring F3 Water Filters, White

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