a) Impotence b) Premature ejaculation c) Having a dick the size of a pimple d) All of the above. The correct answer is option d.

Definition: It is all the reasons above.

Edit: I mean, if a man has these problems, these problems are very good reasons to have for not marrying a woman. In short, I meant don’t get married if you ejaculate prematurely. Don’t ruin the poor thing’s life.