Which of the Following Is a Rule of Etiquette Appropriate

Which of the following is a rule of etiquette appropriate for salespeople?

A) Call a new prospect by their first name right away to break the ice.
B) Avoid offensive stories or comments unless you are meeting outside the client's office.
C) Do not express personal views on religion or politics until clients have first expressed their views.
D) When you invite a customer to lunch,do not discuss business before the meal is ordered unless the client initiates the subject.
E) Do not leave a voice mail;instead,call until you reach the client.