Which of the following is true about −9?(1 point) Responses It is an integer but not a rational number. It is an integer but not a rational number. It is a whole number but not an integer. It is a whole number but not an integer. It is both an integer and a whole number. It is both an integer and a whole number. It is an integer but not a whole number.

The correct answer is: It is both an integer and a whole number.