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: Opteka 6.5mm f/3.5 HD Aspherical Fisheye Lens &amp; Removable Hood for Canon EOS 80D, 77D, 70D, 60D, 60Da, 50D, 7D, T7i, T7s, T7, T6s, T6i, T6, T5i, T5, SL2 and SL1 Digital SLR Cameras
Product 2: Vivitar 8mm F3.5 Fisheye Lens for Canon Digital SLR Cameras

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