which statement best describes the big bang theory?

Question

A.The universe began as a ball of energy and has been collapsing since its formation.

B.The universe began as a cloud of dust and gas and has been expanding since its formation.

C.The universe began at an outer boundary has been collapsing since its formation.

D.The universe began at a single point and has been expanding since its formation.

Answer 1

Think about an explosion. Its starts off at one spot and goes on from there. Therefore the answer is___

Answer 2

Answers A and C can be eliminated. In my reading, scientists in the astronomy field measure the age of the universe by how far it seems to be expanding. Answers B and D are a matter of opinion. I have read both in different articles and books. If you are working out of a textbook, look up the term in the index to see the authors' opinion on the single point versus the cloud of gas and dust.