Which statement about the Chi Square distribution is false and why?

Which statement about the Chi Square distribution is false and why?
A) The chi-square statistic is always positive

B) As the degrees of freedom increases, the mean of the chi-square distribution increases.

C) As the degrees of freedom increases, the shape of the chi-square distribution becomes more skewed.

D) The chi-square distribution is always right skewed, regardless of the value of the degrees of freedom parameter.

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