Multiple Choice, Single Answer (Core)

Read the text and answer the question.

Four coworkers who live in the same neighborhood have agreed to carpool to the office three days a week to save on parking and gas. Each person drives one week per month, rotating in the order they joined the arrangement, and the driver for that week picks everyone up between 7:45 and 8:00 a.m. If the scheduled driver is sick or on vacation, the next person in the rotation takes over for those days rather than skipping a turn. The group has agreed that anyone running more than ten minutes late must text the others, since the driver will only wait outside a house for five minutes before leaving without them.