Direction: Each of the following questions contains six statements followed by four sets of combinations of three. You have to choose that set in which the third statement logically follows from the first two.
A. No bird is viviparous.
B. All mammals are viviparous.
C. Bats are viviparous.
D. No bat is a bird.
E. No bird is a mammal.
F. All bats are mammals.