When Comparable Resumes for Two Applicants - One Aged 57

When comparable resumes for two applicants - one aged 57 and one aged 22 - were sent to 775 large companies, what was the result?

A) The older applicant received a favourable response 31 percent of the time, while the younger applicant received a favourable response 23 percent of the time.
B) The older applicant was ignored completely in favour of the younger applicant.
C) The younger applicant received a favourable response 43 percent of the time, while the older applicant received a favourable response only 17 percent of the time.
D) The younger applicant received a favourable response 64 percent of the time, while the older applicant received a favourable response only 25 percent of the time.