Which of the Following Statements Is True of the WARN

Which of the following statements is true of the WARN Act?

A) It requires employers to give notice of a scheduled mass layoff.
B) It requires employers to give notice to an "at will" employee that he/she is being fired.
C) It requires employers to give notice to employees that an unscheduled drug test will be conducted for all employees.
D) It requires employers to give notice to employees that they are being subjected to polygraph tests.
E) It requires employers to give notice to employees that they are being subpoenaed by a court of law.