None of these dials has numbers. Which of the clocks (a)–(d) shows twenty-five to five?

Twenty-five to five is 4:35: the long hand at the 7 position and the short hand a little more than halfway from 4 to 5. (a) is 5:35 (short hand past 5), (b) has the hands swapped, (c) is 4:25. So (d).