Instruction: Given the title of two products, predict if the two products are similar, if the two products will be purchased or viewed together. Answer only from the options.

Input:
Product 1: CAMVATE Thread Adapter 1/4&quot;-20 Female to 3/8&quot;-16 Male &amp; 3/8&quot;-16 Female to 1/4&quot;-20 Male
Product 2: Pergear TH3 Pro DSLR Camera Tripod Ball Head, 8KG/17.6lbs Loading Capacity, 360 Degree Swivel, Metal Build Quality, Fine Tuning Damping, U-Shaped Groove Design for Easy Switching Into Vertical Mode

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