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: CablesOnline DB9 Null Modem Male to Male Slimline Data Transfer Adapter/Gender Changer , (2-Pack) (AD-N05M-2)
Product 2: StarTech.com 6 ft Straight Through Serial Cable - DB9 F/F

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