Therapeutic levels of a drug can be obtained more rapidly by delivering: A loading dose b. A mega dose c. A loading dose followed by maintenance...

Therapeutic levels of a drug can be obtained more rapidly by delivering:

a. A loading dose

b. A mega dose

c. A loading dose followed by maintenance doses

I can't decide which is the BEST answer- a. or b.???? I know it is a loading dose, but is it a loading dose followed by the maintenance doses that is the BEST answer of the two???