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: Optoma HD141X 1080p 3D DLP Home Theater Projector (Manufacturer Refurbished)
Product 2: Optoma HD26 1080p 3D DLP Home Theater Projector

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: C