A Husband and Wife Have Just Opened a Gymnastics Center,with

A husband and wife have just opened a gymnastics center,with the hope of training future Olympians.They desire to run their center in a socially responsible way.Which of the following should they certainly avoid?

A) purchase of substandard gym equipment
B) advertising methods intended to profit the center
C) initiatives that decrease the satisfaction of investors
D) doubling of enrollment fees for the program
E) provision of attractive salaries for employees