A Hospital Has Written a Well-Defined Surge Call-Back System for Employees

A hospital has written a well-defined surge call-back system for employees to use in case of a disaster. What are key vulnerabilities of this system?

A) Employees may be unwilling to come back into the disaster.
B) Employees may be personally affected by the disaster.
C) Many employees will request additional pay for shifts worked during disasters.
D) There may be no way to contact employees for call-back.
E) The employee may not physically be able to return to the hospital.