Which statements about opposites are true?

Select each correct answer.

Responses

The opposite of zero is zero.
The opposite of zero is zero.

The opposite of a negative number is always a positive number.
The opposite of a negative number is always a positive number.

A number and its opposite are located the same distance from zero on a number line.
A number and its opposite are located the same distance from zero on a number line.

The product of a number and its opposite is always 1.