what is the origin of all stars?\no supernova\no dwarfs\no protostars\no nebulae

what is the origin of all stars?\no supernova\no dwarfs\no protostars\no nebulae
Answer
Answer:
D. nebulae
Brief Explanations:
Stars form from nebulae, which are clouds of gas and dust in space. Gravity causes the material in nebulae to collapse and form protostars, which eventually become full - fledged stars. Supernovas are the explosions of massive stars, and dwarfs are types of stars at different stages of their life cycle. So nebulae are the origin of all stars.