Answer:
Option B. "It may change due to new scientific evidences. " is correct about big bang theory
Explanation:
Various evidences has been found from time to time, even scientists are working over it now, and certain evidences are yet to be found which can further alter the evidences now we are having. The theory is the cosmological model. When our universe was born it was unimaginably hot.
This theory also gives information about the expansion of the earth with high density and also having very high temperature. After the first expansion the earth cooled down subsequently which permitted the formation of the subatomic particles. And later the atoms. big clouds of the elements merged afterwards due to the gravity. Most part of the universe is dark part, which is still a mystery.