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:  BLACKHAWK! SERPA Level 3 Auto Lock Duty Holster - Plain Finish 
Product 2: Safariland 7360 7TS ALS/SLS Mid-Ride III Retention Glock 17/22 Duty Holster with ITI Light, Black, Right Hand

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: B