On the SAT Reasoning Test,why Is the Male Sample of Test-Takers

On the SAT reasoning test,why is the male sample of test-takers NOT readily comparable to the female sample?

A) Fewer males than females take the SAT reasoning test.
B) Fewer males than females score above the average on the SAT reasoning test.
C) Fewer females than males take the SAT reasoning test.
D) Fewer females than males score above the average on the SAT reasoning test.