While driving, which hours are especially conducive to the onset of sleepiness?

A)The last hours of the morning.
B)The last hours of the afternoon and the early hours of the morning.
C)The early morning hours and the first hours of the afternoon.Correct
# Explanation: Hours of Greatest Risk of Sleepiness
The human body has natural circadian rhythms that favor sleepiness at specific times of the day. **The early morning hours (between 2 and 6 AM) and the first hours of the afternoon (between 1 and 4 PM) are the periods of greatest risk**, coinciding with the moments of least natural activity of the body.
During these time periods, drivers should exercise extreme caution, take frequent breaks and, if possible, avoid driving in the early morning if they feel tired. Recognizing these sleep peaks is essential to prevent accidents due to fatigue.