In general, drowsiness occurs most frequently...

A)in the early morning hours and at the end of the afternoon.
B)during the middle hours of the morning and in the early afternoon hours.
C)during the early hours of the morning and in the early afternoon hours.Correct
Drowsiness tends to occur most frequently during the early morning hours (between 4:00 and 5:00) and the early afternoon hours (between 14:00 and 16:00).
The most important rules to avoid having an accident due to drowsiness or fatigue are:
- If we feel tired or drowsy while driving, the most advisable thing is to stop and rest in a suitable place and sleep for about 20 or 30 minutes.
- Rest for 20 to 30 minutes every 2 hours or every 200 kilometres at most.
- Always be alert to the signs and symptoms of drowsiness or fatigue.