The Figure Below Shows Three Generations in One of Mendel's

The figure below shows three generations in one of Mendel's experiments.
According to the data in this figure, Mendel's F₂ generation contains many more purple flowers than white flowers. Which of the following is the best explanation of this observation?

A) Three quarters of the offspring must receive the white allele.
B) The chance of an individual offspring receiving a white allele is only 25 percent.
C) The probability of any individual offspring receiving a of the purple allele is 3:1.
D) The white allele is only dominant in about 25 percent of the offspring that inherit it.