The answer is a because I think so
The best statement that describes lightning is A. It is one of the most dangerous parts of a thunderstorm. Lightning, although often thought to always strike the Earth, can actually occur in the same cloud (intracloud) and between clouds (cloud to cloud). It is caused by the electrostatic discharge between charged particles in the atmosphere.
Is there a blank at the end of this statement?
If there is then the blank would be filled in with SPECIES
