Instruction: Predict whether two products are similar, whether two products are likely to be purchased or viewed together based on their titles. Choose your answer from the provided options.

Input:
Product 1: GermGuardian LB5000 GENUINE UV-C Replacement Bulb for AC5000 &amp; AC5250PT Germ Guardian Air Purifiers
Product 2: True HEPA Replacement For GermGuardian filter C (FLT5250 / FLT5250PT) For AC5000 Series Air Purifiers (1)

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