According to the Theory of Cosmic Inflation, at What Time

Multiple Choice

According to the theory of cosmic inflation, at what time in the history of the universe did inflation occur?

A) at the time that the cosmic background radiation formed
B) at a tiny fraction of the first second, but not quite at the very beginning of the big bang
C) at the very beginning of the big bang
D) around the third or fourth second
E) around the third or fourth minute