Options:
i. A Greek letter
ii. competition
iii. friendship
iv. birth of a child
v. death
vi. Chemical energy
vii. pregnancy
viii. sweating

You are presented with the quiz "What often precedes mating?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "mating is generally preceded by courtship" and "friendship usually precedes courtship, and courtship, marriage". So, what's the best answer to the question?
Answer:
iii.