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: California King 10 Inch Thick, 4 Pound Density Visco Elastic Memory Foam Mattress Bed With Gel Made in the USA
Product 2: Sleep Innovations G-MAT-01410-CK-WHT Mattress, California King

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