The Proposed Inflationary Epoch Would Explain Many Features of the Observable

Multiple Choice

The proposed inflationary epoch would explain many features of the observable universe. But can inflation itself be tested?

A) No, unfortunately there is no direct test for inflation.
B) Yes, the temperature of the cosmic microwave background provides a test of cosmic inflation.
C) Yes, the uniformity of the cosmic microwave background provides a test of cosmic inflation.
D) Yes, the polarization of the cosmic microwave background provides a test of cosmic inflation.