At a bus stop midway through your morning route, a parent approaches the door of the bus to talk with you about her child's catching lice from someone on the bus. You
A. remain on the bus and talk with the parent through the open door of the bus.
B. invite the parent on the bus to discuss the situation.
C. provide telephone numbers of your supervisor or the school's principal and ask the parent to call one of them to set up an appointment to discuss the problem with you and the administrators.
D. tell the parent that you do not have time to talk at the bus stop and that if she wants to communicate with you, she needs to do so in writing.