Which of the following is an appropriate use of modified-wave scheduling for one provider with 20-min appointments?
a. Scheduling two patients at 9:00 a.m. and one patient at 9:20 a.m.
b. Scheduling two patients at 9:00 a.m. and two patients at 9:30 a.m.
c. Scheduling three patients at 9:00 a.m. and one patient at 9:30 a.m.
d. Scheduling three patients at 9:00 a.m. and three patients at 9:40 a.m