Answer:
D.
Step-by-step explanation:
The punnet square is divided into 4 sections. RR means red, Rr means pink, and rr means white.
There is only one square with RR, so that's 25% red. (1 out of 4 squares)
Two squares are Rr, which means 50% are pink.
One square is rr, which means the remaining 25% is white.
