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 18-125mm f/3.5-5.6 AF DC OS HSM Zoom Lens for Nikon Digital SLR Cameras
Product 2: Sigma 18-200mm f/3.5-6.3 DC Auto Focus OS (Optical Stabilizer) Zoom 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