Gina wants to conduct a study of discrimination based on looks in hiring practices. Gina selects two candidates with equivalent qualifications, one extremely attractive and the other of average attractiveness

She sends them to interview for the same job. The dependent variable in Gina's experiment is
a. the relative attractiveness of the two candidates.
b. the qualifications of the two candidates.
c. the type of job the candidates apply for.
d. the response of the interviewer to each candidate.
e. the number of candidates who interviewed for the job.

d. the response of the interviewer to each candidate.