Fill in the blank with the appropriate option out of the choices given below:

I ________ to God, for the prosperity of all human beings.

pray

The correct word to fill in the blank is "pray".

The sentence is expressing a desire for the prosperity of all human beings, and praying is the appropriate action to take when expressing such a desire. Praying is an act of communication with a higher power, typically God, in which one expresses requests, thanks, or praise.