In a majority of flowering plants, out of the four megaspores, what is the ratio of functional and degenerate megaspores?

In a majority of flowering plants, out of the four megaspores, what is

1.	In a majority of flowering plants, out of the four megaspores, what is the ratio of functional and degenerate megaspores?
A.	0.084722222222222
B.	0.04375
C.	0.12569444444444
D.	0.16666666666667
Answer» C. 0.12569444444444