1.In four-o'clock plants, red flower color is dominant to white flower color. However, heterozygous plants have a pink color. If pink-flowered plants are self-crossed, what will be the phenotypic ratios of their offspring?
A. ½ pink, ½ white
B. All pink
C. ½ red, ½ pink
D. ¼ red, ½ pink, ¼ white
E. 1/3 red, 1/3 pink, 1/3 white
