Plz medal and plz i really need on this problem.
a hairdresser owner gives a survey to all of her customers asking them to rate the quality of the service they received. she then keeps track of how many customers return to the salon during the next six months. last year, the results showed that of the customers who reported high quality service, 95% returned. what conclusion can be drawn from this study?
a. high-quality services cause customers to return to the salon.
b. customers who return to the salon report a high quality of service.
c. some customers who rate their service as high quality return to the salon.
d. most customers who rate their service as high quality return to the salon.