The FDA's Rule on Moldy Cheese Has Some Exceptions; What

The FDA's rule on moldy cheese has some exceptions; what are they, which cheeses do they apply to, and why are the exceptions in place?
A)A cheese aged for a very short period, containing 50-75% moisture.
B)A cheese that is not aged, containing greater than 80% moisture.
C)A cheese aged for varied periods of time, containing 30-40% moisture.
D)A cheese aged for varied periods of time, containing 40-50% moisture.
E)A cheese aged for the longest period of time, containing approximately 30% moisture.