In Regard to Holidays,which of the Following Is Required by Federal

In regard to holidays,which of the following is required by federal law?

A) That employees be allowed to either be off or be paid double for 3 holidays per year.
B) That employees be allowed to either be off or be paid double for 1 holiday per year.
C) That employees be allowed to either be off or be paid double for 2 holidays per year.
D) Employees are not guaranteed any holidays off or any extra pay for working holidays under federal law.
E) That employees be allowed to either be off or be paid double for 4 holidays per year.