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: Pentax D-LI90E Rechargeable Lithium-Ion Battery for 645, K-1II, K-1, K-3II, K-3, K-7, K-5, K-5II &amp; K-5IIs DSLR's
Product 2: Pentax O-LC77 77mm Front Lens Cap

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