Which stages in the life cycle of a massive star are listed in the order that they occur?
protostar→supernova→red supergiant\text{protostar} \rightarrow \text{supernova} \rightarrow \text{red supergiant}protostar→supernova→red supergiant
stable star→red supergiant→supernova\text{stable star} \rightarrow \text{red supergiant} \rightarrow \text{supernova}stable star→red supergiant→supernova
red supergiant→stable star→neutron star\text{red supergiant} \rightarrow \text{stable star} \rightarrow \text{neutron star}red supergiant→stable star→neutron star
supernova→protostar→red supergiant\text{supernova} \rightarrow \text{protostar} \rightarrow \text{red supergiant}supernova→protostar→red supergiant
104 exam-style questions on CIE IGCSE Physics 6.2 Stars and the Universe, covering 6.2.1 The Sun as a star, 6.2.2a Galaxies and astronomical distances, 6.2.2b The life cycle of a star, 6.2.3a Galaxies and the scale of the Universe, 6.2.3b Redshift, 6.2.3c The Big Bang Theory and cosmic microwave background radiation, and 6.2.3d The Hubble constant and the age of the Universe. Each one has a worked solution and a mark scheme showing where the marks go.