If a Representative of a Hotel Group Offered an Existing

If a representative of a hotel group offered an existing customer a free night in a hotel property, and when the customer checked into the hotel, the concierge asks the guest to attend a presentation about the hotel group's time share opportunities, this business practice would probably fall into which of the following categories?

A) ethical but illegal
B) ethical and legal
C) unethical and illegal
D) unethical but legal
E) In today's media age, this practice has become universal; any bias is implied and need not be directly stated under the caveat emptor doctrine.