Analyze the table below and answer the question that follows.
A square with four boxes. Uppercase R lowercase r are on the left side of the square. Uppercase R lowercase r are on the top side of the square. In the square: Uppercase R uppercase R in the first box on the top. Uppercase R lowercase r in the second box on the top. Uppercase R lowercase r in the first box on the bottom. Lowercase r lowercase r in the second box on the bottom.
If the ability to roll one’s tongue is dominant (R) and the inability to roll one’s tongue is recessive (r), what would the genotype be for someone who can not roll their tongue?
A.
RR and rr
B.
Rr
C.
Rr and rr
D.
rr