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: Neewer Two E-TTL Flash Speedlite for Canon DSLR Camera Such as 5D Mark II 5D Mark III 700D 650D 600D 1100D 550D 500D 100D 6D(NW-562)
Product 2: Yongnuo YN-622C Wireless ETTL Flash Trigger Receiver Transmitter Transceiver

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