The three correct answers relating to the relationship between nebulae and stars are:
- Stars form from nebulae.
- Stars explode to form nebulae.
- Nebulae form from stars.
These statements reflect the life cycle of stars and the role of nebulae as regions in space where new stars can form, as well as the remnants of stars when they explode (such as in supernovae), leading to the formation of new nebulae.