The following two frequency histograms represent the distribution of acceptance rates (percent of applicants accepted) among 25 business schools in a recent academic year. The histograms use different class intervals but are based on the same data. In each class interval, the left endpoint is included but not the right. 8 5 2 10 20 30 40 7.5 30.0 52.5 Acceptance Rate Acceptance Rate What percent of the schools have an acceptance rate of under 20%? a) 24 b) 12 c) 16 d) 4 e) 28