Instruction: Given the title of two products, predict if the two products are similar, if the two products will be purchased or viewed together. Answer only from the options.

Input:
Product 1: RUBAN 360 Degree Rotating Automatic Wake/Sleep Stand Case with Screen Protector for Apple iPad 2 / iPad 3 / iPad 4 - Black
Product 2: Ruban iPad 2/3/4 Case Release [Corner Protection] - [Scratch-Resistant] and High-Grade PU Leather Folio Stand Smart Cover, Auto Wake/Sleep for Apple iPad 2th/3th/4th Gen with Retina Display, Black

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: C