Amechanic gives a survey to all of his customers asking them to rate the quality of the service they received. he then keeps track of how many customers return to the shop for additional services during the next six months. last year, the results showed that of the customers who reported high quality service, 20% returned for additional services. what conclusion can be drawn from this study?

a some customers who rate their service as high quality return for additional services.

b most customers who rate their service as high quality return for additional services.

c high quality services cause customers to return for additional services.

d customers who will return for additional services report a high quality of service.