Why Is the Fact That the Cosmic Microwave Background Radiation

Multiple Choice

Why is the fact that the cosmic microwave background radiation is very smooth considered a problem?

A) A universe as smooth as predicted by the cosmic microwave background radiation should not have formed as many galaxies as have been observed.
B) A universe as smooth as predicted by the cosmic microwave background radiation should have collapsed by now.
C) A universe as smooth as predicted by the cosmic microwave background radiation should be expanding much faster than we are now.
D) A universe as smooth as predicted by the cosmic microwave background radiation should never have occurred occur because quantum mechanical fluctuations would have been imprinted on it.