Final answer:
Option D: Roll an ordinary die. If the die lands on 1 or 4, Mark drives first. If the die lands on 2 or 5, Anthony drives first. If the die lands on 3 or 6, Derek drives first.
Step-by-step explanation:
The method that assures that each of the three friends has a fair chance of being selected to drive first is Option D: Roll an ordinary die. If the die lands on 1 or 4, Mark drives first. If the die lands on 2 or 5, Anthony drives first. If the die lands on 3 or 6, Derek drives first.
Using a fair die ensures that each of the three friends has an equal probability of driving first. Since a fair die has six sides and each side has an equal chance of landing face up, there is a 1/6 probability that the die will land on any specific number. Therefore, each friend has a 1/6 chance of being selected to drive first.