If m and n are negative integers, which of the following statements must be true?
I. (-m)^n is positive.
II. (-m)^(-n) is positive.
III. m^(-n) is positive. Select the correct option.
A) None	B) II only	C) I and II	D) I and III	E) I, II and III
Let's m = -2 and n = -3   I. (-m)^n = (2)^(-3) = 1/(2^3) --&gt; Positive   II. (-m)^(-n) is positive. = 2^3 --&gt; Positive   III. m^(-n) is positive. = -2^3 --&gt; Negative   Answer: I and II
<result>C</result>
If m and n are negative integers, which of the following statements must be true?
I. (-m)^n is positive.
II. (-m)^(-n) is positive.
III. m^(-n) is positive.