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: Canon EF 50mm f/1.8 II Camera Lens w/ 52mm Multicoated UV Protective Filter, and Lens Cap Keeper
Product 2: Canon EF-S 18-135mm f/3.5-5.6 IS Standard Zoom Lens for Canon Digital SLR Cameras (New, White box)

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