The Mayor of your community has asked the planning department to come up with a simple way to gauge whether residents approve of the city's new recycling program. There is a very limited budget, and a survey has been devised asking residents to respond "yes" or "no" on the city's website. Is this an example of a binary variable?
A. Yes, because binary variables have only two different values
B. No, because "yes" and "no" questions have nothing to do with binary variables
C. No, because binary variables can only have positive values
D. No, because binary variables can have multiple values