Which of the Following Statements About Manners and Business Etiquette

Which of the following statements about manners and business etiquette is most accurate? 

A) Good manners and professional demeanor are hard skills that employers value in employees.
B) Because you aren't born with the ability to be courteous, civil, and professional, learning these skills is difficult.
C) Employers are more likely to hire and promote someone who is courteous and professional.
D) All of these choices are accurate statements.