You are presented with the quiz "Female monotremes lack ability to what?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "female monotremes lack a uterus and vagina" and "babies are normally delivered from the uterus through the vagina". So, what's the best answer to the question?

Available options:
(I). allow growth;
(II). mate with females;
(III). lay eggs;
(IV). produce offspring;
(V). deliver babies normally;
(VI). swim in water;
(VII). nest in burrows;
(VIII). decrease stamina;
The answer is:
(V).