You must always give the right-of-way to

Answer: C — Emergency vehicles

It is important to give the right-of-way to emergency vehicles for the safety of everyone on the road. Emergency vehicles may be responding to a crisis situation and need to reach their destination quickly. Failure to give them the right-of-way could result in delays and hinder their ability to provide necessary aid. While it is also important to give the right-of-way to pedestrians in crosswalks and cars turning left, these situations may not have the same level of urgency as emergency vehicles. Giving the right-of-way to oncoming drivers is not always necessary as it can depend on specific traffic laws and road conditions. Therefore, the best and most responsible option is to give the right-of-way to emergency vehicles.