I Nonparametric Tests of Hypotheses, Which Are Also Called Distribution

i. Nonparametric tests of hypotheses, which are also called distribution free tests, require the population to be normally distributed.
Ii) The shape of the chi-square distribution changes for each number of degrees of freedom.
iii. The chi-square distribution is a positively skewed distribution.

A) (i) , (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements, but not (iii) .
C) (i) and (iii) are correct statements but not (ii) .
D) (ii) and (iii) are correct statements but not (i) .
E) All statements are false