A Representative Who Votes in Accordance with the Wishes of His

A representative who votes in accordance with the wishes of his or her constituency is acting as a(n) __________, while one who pursues the best national interest, regardless of public opinion in his or her constituency, is acting as a(n) __________.

A) ​trustee; instructed delegate
B) instructed ​delegate; trustee
C) ​trustee; ombudsperson
D) ​instructed delegate; ombudsperson
E) ​ombudsperson; trustee