The word aerial means a. from space b. from ground level c. from the air d. from sea level

The correct answer is C. The word aerial means "from the air".

Explanation:

Aerial is an adjective that has its origin in the Latin word aereus and that makes mention of that belonging or relative to the air: it may refer to something belonging or relative to the air; the air itself; or that which has an origin, is realized, is used, works or happens in the air.