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: Noctua NF-B9 redux-1600 PWM, 4-Pin, High-Performance Cooling Fan with 1600RPM (92mm, Grey)
Product 2: Phobya PWM Fan Adapter for Graphics Cards

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: A