If there are three or more populations, then it is
a. impossible to test for equality of the three population proportions, because chi-square tests deal with only two populations.
b. reasonable to test for equality of multiple population proportions using chi-square lower tail tests.
c. possible to test for equality of three or more population proportions.

c. possible to test for equality of three or more population proportions      

Explanation:

The answer is ---

c. possible to test for equality of three or more population proportions.

When ever there is a  three or more than three populations, then it is possible to test for the equality for three or more than three population proportions using a chi-square tests.

A chi-square test can be used to determine the equality of population proportion for three or more than three populations. It is very versatile and an expand theory.

Hence the answer is

c. possible to test for equality of three or more population proportions.  

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non-citizens to become legal citizen with all related right responsibilities
Therefore, that citizen doesn't have to live illegally and could be treated as an equal to the us born citizen

hope this helps