When Olivia Learned That Just Twenty of Her Yoga Studio

When Olivia learned that just twenty of her yoga studio customers accounted for 80 percent of her annual revenue,she probably

A) adjusted class schedules to meet the needs of those twenty customers.
B) surveyed those twenty customers to see what other types of yoga classes they were interested in.
C) offered a special session for just those twenty customers.
D) analyzed the geodemographics of those twenty customers to see how she could attract more people like them.
E) did all of these tasks.