Task: Product_Relation_Prediction
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: Galco KT228B Kingtuk Inside the Waistband Gun Holster for Glock 21, Right, Black
Product 2: Meprolight Glock Tru-Dot Night Sight for 10 mm &amp; .45 ACP. fixed set

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