A. The discovery of penicillin
The important part here is "daily" - so we can ask, what else happens daily? the seasons, which are caused by the tilt of the earth and the Earth's rotation around the Sun, are on a yearly schedule rather than a daily schedule. What happens on a daily basis is one rotation of the Earth on its axis - and the correct answer is a)
They both require respective heads of the executive branch of government.
Jesus told the the parables about the lost sleep.
Richard Caswell led an attack against the Cherokees during the American Revolution.