Which of the Following Is a Difference Between Independent Administrative

Which of the following is a difference between independent administrative agencies and executive administrative agencies?

A) Independent administrative agencies are created by private stockholders, whereas executive administrative agencies are created by the legislative branch of government.
B) The heads of independent administrative agencies cannot be removed by the president, whereas the heads of executive administrative agencies can be removed by the president.
C) Independent administrative agencies are headed by people with prior experience in private enterprises, whereas executive administrative agencies are headed by a board of commissioners.
D) The heads and members of the board have no fixed term of office in independent administrative agencies, whereas the heads and members are appointed for a specific term of years in executive administrative agencies.