Which of the Following Is Not an Example of a Role

Which of the following is not an example of a role taken throughout history by the First Lady, who is the spouse of the president?

A) advocating for social issues such as illiteracy or health care
B) serving on national committees to develop policy recommendations to Congress
C) serving as host and White House manager of social affairs
D) serving as intermediary between the president and other government leaders when the president is incapacitated
E) serving as an official member of the president's cabinet