Directions for the question: the question contains six statements followed by four sets of combinations of three. choose the set, which gives the most logical triad. i.e. the third statement mentioned should be a conclusion drawn from the first two statement.
a. no fish breathe through lungs.
b. all fish have scales.
c. some fish breed up stream.
d. all whales breathe through lungs.
e. no whales are fish.
f. all whales are mammals.