In a Chi-Square Test of Homogeneity of Proportions We Test

In a chi-square test of homogeneity of proportions we test the claims that

A) the proportion of individuals with a given characteristic doesn't change over time.
B) the proportion of a population having a given characteristic is based on the homogeneity of the population.
C) across a single sample the proportion of individuals with the same characteristic is the same as the population.
D) different populations have the same proportions of individuals with the same characteristics.