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: Nikon D2X DSLR 12.4 MP Camera
Product 2: Nikon D90 12.3MP DX-Format CMOS Digital SLR Camera with 18-105 mm f/3.5-5.6G ED AF-S VR DX Nikkor Zoom Lens (OLD MODEL)

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