Question

the main responsibility of the transportation security administration is to
provide police protection for airline passengers.
maintain secure flight schedules for the airlines.
make sure planes are mechanically ready for flying.
screen passengers for weapons and explosives.

Explanation:

The Transportation Security Administration (TSA) focuses on screening passengers at airports to detect weapons and explosives for security purposes. It doesn't provide police - like protection, manage flight schedules, or check aircraft mechanical readiness.

Answer:

D. screen passengers for weapons and explosives.