Suppose "A" Is a Dominant Gene for the Ability to Taste

Multiple Choice

 Suppose "A" is a dominant gene for the ability to taste phenylthiocarbamide (PTC) and "a" is a recessive gene for the inability to taste it. Which couples could possibly have both a child who tastes it and a child who does not?

A) father AA, mother aa
B) father Aa, mother AA
C) father Aa, mother Aa
D) father AA, mother AA