During the new employee orientation, the training officer meets with the new EMTs and explains to th

During the new employee orientation, the training officer meets with the new EMTs and explains to them the monthly training schedule and the classes they must attend for EMT recertification. One of the new EMTs asks the training officer why they have to keep taking EMT courses if they already passed the EMT examination. What is the best answer?
A) It looks good to a jury should the service be sued.
B) The state requires the training.
C) EMTs forget everything once they pass the EMT exam.
D) EMS is constantly evolving in response to evidence-based research.