Answer:
We must sometimes do unpleasant things to make life more pleasant.
Explanation:
Paradox is simply like a statement that is contradictory for example "all animals are equal, but some are more equal than others."
Hence, the last option makes more sense to be chosen as the answer.
(We must sometimes do unpleasant things to make life more pleasant)
i hope this helps and is right!! p.s. i really need brainliest