Instruction: Evaluate the titles of Product 1 and Product 2 to assess their similarity and whether they are likely to be purchased or viewed together. Then, select the appropriate option.

Input:
Product 1: Yongnuo Professional Flash Speedlight Flashlight Yongnuo YN 560 III for Canon Nikon Pentax Olympus Camera / Such as: Canon EOS 1Ds Mark, EOS1D Mark, EOS 5D Mark, EOS 7D, EOS 60D, EOS 600D, EOS 550D, EOS 500D, EOS 1100D (Discontinued by Manufacturer)
Product 2: Yongnuo Updated YN600EX-RT II Flash Speedlite for Canon's 600EX-RT/ST-E3-RT Wireless Signal Camera, Master,USB Firmware Upgrade, 1/8000sec Sync Speed

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