Instruction: Evaluate the titles of Product 1 and Product 2, then choose the option that best describes the relation between the two products.

Input:
Product 1: Sigma 28-70mm f/2.8-4 DG Aspherical Large Aperture  Zoom Lens for Canon SLR Cameras
Product 2: Tokina 11-16mm f/2.8 AT-X116 Pro DX II Digital Zoom Lens (AF-S Motor) (for Nikon)

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