The correct option is C Big-bang theory
The Big Bang theory is considered the most credible scientific explanation of how the Universe was created.
As per the Big Bang Theory, at the beginning of the universe, there was a huge mass of matter. This mass exploded and got broken up into millions of fragments. These fragments became stars. Some parts of these stars got detached from them and cooled down to form planets. It suggests that through a process of expansion and explosion hydrogen gas was created which led to the formation of stars, and their death.