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: Macally Protective Case Cover for 13-Inch MacBook Air (SlimFolio13BL)
Product 2: Twelve South BookBook for MacBook | Vintage leather book case/sleeve for 13-inch MacBook Air/Pro

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