Which of the following statements about the use of a postscript $($PS$)$ at the end of a sales letter is true?

Postscripts right after the greeting are most effective.

Postscripts should ideally provide details of the sales representative to be contacted for queries.

Postscripts should not be used to highlight the requested action because the customer may resent feeling pressurized by the sales team.

Postscripts should be used to ask about a prospect's family or some other element of his or her personal life.

Postscripts should be used to emphasize an important selling point.