Stars begin as vast clouds that are called Molecular clouds, or Nebulae.
Nebulas are produced of the hydrogen in the molecular form (H2), dust,
helium and other ionized gases. Aurora is a natural display of glowing
light in the night sky, connected with the magnetic field of the planet.
Protostar is an undeveloped star in its early stages of creation. It
comes after the stage of Nebula. White Dwarf is the last phase of the
stars life. Answer: B ) Nebula.
