If the seller of a large, expensive home on a golf course gives specific instructions during a listing appointment that the sales associate would not be permitted to show the home to anyone from a certain protected class, what should the sales associate do?

Agree whole heartedly and take the listing.

Tell the seller that this would be discriminatory and refuse the listing.

Take the listing and ask the broker how to get around the problem.

Tell the seller that he would provide them with the names of prospective buyers so he could approve the showing, or not.