Clicking noise...

When my 97 corolla is at a stop, and you shift it from park into drive, there is a pretty audible click from the engine bay. I look into the area the sound is coming from , but cannot tell what is making the noise. The car has 175K miles.
Could this be motor mounts?

my guess is cv joint, but take it to a shop and see what they say, make sure they'll inspect it for free, some shops charge you $60-$80+ just to inspect it