A only Text I discusses how the absence of sleep can disturb the routine of air traffic controllers.
B only Text II introduces a list of recommendations to improve the on-the-job performance of air traffic controllers.
C neither Text I nor Text II seem to be concerned with improving air traffic controllers’ health conditions.
D both Text I and Text II mention alarming situations resulting from air traffic controllers’ sleep deprivation.
E Text I tries to justify why air traffic controllers constantly fall asleep while on duty, while Text II only condemns their improper behavior at work.