Which of the following is a true statement about absolute value?
a. the absolute value of a positive number is a negative number.
b. only integers have absolute values.
c. -3 is 3 units from zero on the number line.
d. all of these statements are true

The best and most correct answer among the choices provided by your question is the third choice or letter C.

The only true statement about absolute value in the choices is " -3 is 3 units from zero on the number line. "

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