Instruction: Analyze the titles of Product 1 and Product 2 to determine if they are similar, if they will be purchased or viewed together, and choose the corresponding option.

Input:
Product 1: LG HBS-910 Tone Infinim Bluetooth Stereo Headset (Certified Refurbished) (Silver)
Product 2: Smatree Charging Case Compatible with LG Tone HBS-900 / HBS-760 / HBS-910 / HBS-750 / HBS-800 / HBS-1100 / HBS-730/HBS 920/HBS 930 Bluetooth Wireless Stereo Headset (Headphone NOT Included)

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