D
Below is a question with multiple-choice answers. Choose the correct option based on your reasoning.

### Question:
In certain species of plants, purple flowers (P) are dominant to white flowers (p). If two heterozygous plants are crossed, what will be the phenotype of the offspring?

### Choices:
A. 100% purple flowers
B. 100% white flowers
C. 75% white flowers, 25% purple flowers
D. 25% white flowers, 75% purple flowers

### Answer:
