The Flatness Problem and Horizon Problem

The flatness problem and horizon problem

A) are solved if there was a sudden inflation of the universe at time before recombination occurred.
B) show that the universe can be described as static and unchanging.
C) show that dark matter must be a small fraction of the total mass of the universe.
D) imply that the universe was once much colder than it is now.
E) imply that the inflationary theory is incorrect.