Which of the Following Are Common Practices with Regard to Employee

Which of the following are common practices with regard to employee rates?

A) Offering complimentary/discounted employee rooms is an inexpensive way for chains to supplement their employee benefits packages
B) Special rates are always provided on a space-available basis
C) Special rates are extended to employees of the chain when they travel to other properties
D) All of the above are correct or common practices
E) Both A and B are true. But C is false because other properties tend to be concerned only about their own employees