Check the picture below, well that picture is using feet, but is pretty much the same curve for meters.
notice, it hits the ground when y = 0, or h(t) = 0, thus

Its A. kdhfaklshkljadfhlkjdhfjdhjjjjjjjjjjjjjjjjjjjjjj
If he has 1/4 of a cup, that means he must fill it up 4 times to equal 1 cup (1/4*4). if he wants 2 cups he must fill it up 8 times.