On the First Day of Class,statistics Professors Ask Each Student

Multiple Choice

On the first day of class,statistics professors ask each student to fill out a demographic questionnaire to learn information about their class.Which of the following variables is/are categorical?

A) Gender
B) Marital status
C) Highest education level of your mother (e.g. ,high school grad,college grad,etc. )
D) All of the above
E) None of the above