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: 500mm f/6.3 Manual Focus Telephoto Mirror Lens For Nikon D3100, D3200, D3300, D5100, D5200, D5300, D5500, D7000, D7200, D90, D300, D600, D610, D700, D750, D800, D810 Digital SLR Camera
Product 2: High-Power 420-1600mm f/8.3 HD Manual Telephoto Lens for Nikon D500, D600, D610, D700, D750, D800, D800e, D810, D810a, D850, D3400, D5000, D5100, D5200, D5300, D5500, D5600, D7100, D7200, D7500 DSLR

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