1. At the beginning of the school year, Mrs. Mallon from Discovery High School asks every student in her classes to fill out a survey that asks for their age, gender, how long they have lived at their current address, their favorite school subject, and whether they plan to go to college after high school. Which of the following best describes the variables that are being measured? (a) 4 quantitative variables: all discrete (b) 5 quantitative variables: 3 discrete and 2 continuous (c) 3 categorical variables, 2 quantitative (discrete) variables (d) 2 categorical variables, 3 quantitative (continuous) variables (e) 3 categorical variables, 2 quantitative (continuous) variables