All stars go through the following stages in their life cycles:
- Nebula - Stars begin as clouds of gas and dust called nebulae.
- Protostar - The nebula collapses under gravity, forming a protostar as it gathers material.
- Main Sequence - This stage is where stars spend the majority of their life burning hydrogen into helium.
- Red Giant or Red Supergiant - Depending on the initial mass of the star, it will expand and cool after exhausting hydrogen in its core.
- Final Stages - Lower-mass stars become white dwarfs, while more massive stars may undergo supernova explosions, potentially leaving behind a neutron star or black hole.
So, among the options you provided, nebula and protostar are common stages in the life cycles of all stars.