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: K&amp;F Concept Lens Mount Adapter, Olympus OM Lens to Canon EOS EF Camera for Canon EOS 1D, 1DS, Mark II, III, IV, 5D, Mark II, 7D, 40D, 50D, 60D, 70D, Digital Rebel T2i, T3, T3i, T4i, T5i, SL1
Product 2: K&amp;F Concept Pro Lens Mount Adapter for Canon FD FL Lens to Canon EOS Camera, for Canon 1D, 1DS, Mark II, III, IV, Digital Rebel T5i, T4i, T3i, T3

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