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: Clean Rest Premium Water-Resistant, Allergy and Bed Bug Blocking Mattress Encasement, Full
Product 2: Twin (13-16 in. Deep) SureGuard Mattress Encasement - 100% Waterproof, Bed Bug Proof, Hypoallergenic - Premium Zippered Six-Sided Cover - 10 Year Warranty

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: B