What did the Ancient Greeks do
when they didn't understand
something?

Mythology in response to many unknowns.

Explanation:

Ancient peoples developed a huge array of different deities. The Greeks were no exception. The fact is that science was underdeveloped in that period; technology in its current form was thousands of years away. Therefore, the Greeks attributed many phenomena that they could not explain to the deities. So they invented a huge number of gods and myths to “answer” many doubts.

is there options? or is it random words?

explanation:

answer; the above statement is (false);