How did cosmic inflation affect the geometry of the universe?
A) Inflation made the expansion rate so large that the gravity of normal matter was not enough to slow it down, even today. Thus the universe still has a hyperbolic geometry.
B) By expanding it so much, inflation spread out the matter so much that the geometry became hyperbolic.
C) By expanding it so much, inflation forced the universe to be flat.
D) Inflation did not affect the geometry of the universe.

Question

Quizplus · Accepted Answer

Inflation theory posits that a rapid expansion of the universe right after the Big Bang stretched any initial curvature to the point where the observable universe appears flat, leading to the current understanding that the universe is flat on large scales.

How Did Cosmic Inflation Affect the Geometry of the Universe