Determine whether the following variable is qualitative or quantitative.

The yes/no responses on a ballot initiative to the question "Should the school day be made longer?"

Choose the correct answer

A. The variable is quantitative because it is possible to count the number of responses and check that each voter gave only one.

B. The variable is quantitative because the yes and no responses can be counted to determine the outcome of the initiative.

C. The variable is qualitative because a voter's response on a ballot initiative depends on his or her opinions.

D. The variable is qualitative because yes/no responses on a ballot initiative are nonnumerical categories.