How does weak background radiation coming from every direction in the sky support the Big Bang Theory?(1 point)

Question

Responses

It provides evidence of the universe's increasing mass.
It provides evidence of the universe's increasing mass.

It provides evidence of universe contraction.
It provides evidence of universe contraction.

It provides evidence of the universe's decreasing mass.
It provides evidence of the universe's decreasing mass.

It provides evidence of universe expansion.

Answer 1

It provides evidence of universe expansion.