However hard you may try, things will not always go your way. When you really fail in something important, you can often learn much from this failure. Perhaps you did not plan your time properly. Perhaps you expected too much of yourself. The sentence above implies that .
A.
failure is the mother of success
B.
those who try hard will surely succeed
C.
those who do not try hard will never succeed
D.
the higher one climbs, the lower one falls