During the life cycle of a star, in what sequence are the objects listed formed?
- Aprotostar $\rightarrow$ red giant $\rightarrow$ supernova $\rightarrow$ stable star
- Bprotostar $\rightarrow$ stable star $\rightarrow$ red giant $\rightarrow$ supernova
- Cred giant $\rightarrow$ stable star $\rightarrow$ protostar $\rightarrow$ supernova
- Dred giant $\rightarrow$ supernova $\rightarrow$ protostar $\rightarrow$ stable star