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: J-DEAL&reg; Wireless Ergonomic Vertical Optical Mouse with Wrist Pain Comfort for with 800dpi for Laptop Computer Tablet PC Windows 98/Me/2000/XP/Vista/Win 7. (Blue)
Product 2: Logitech M570 Wireless Trackball Mouse &ndash; Ergonomic Design with Sculpted Right-hand Shape, Compatible with Apple Mac and Microsoft Windows Computers, USB Unifying Receiver, Dark Gray

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