adolescence. crossbreeding. regeneration. metamorphosis.
I gave my students this multiple choice question: Frog eggs hatch into tadpoles, and then tadpoles gradually develop into frogs. This process is known as

Only one answer is correct among these 4 choices:
- adolescence.
- crossbreeding.
- regeneration.
- metamorphosis.

Could you tell me which one is correct?

metamorphosis.