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: Helios 44-2 58mm F2 Russian Lens for Sony E NEX (for E-mount cameras)
Product 2: Helios-44 58mm F2 RARE Vintage Russian Lens with M39 Mount. 13 blades!

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