Which of the Following Statements Is True About Charismatic Leaders

Which of the following statements is true about charismatic leaders?

A) They are effective during transitional periods but are often replaced by rational-legal leaders once affairs of state become stable.
B) They are usually members of a royal family, whose authority is granted based on tradition.
C) Their leadership structure is usually bureaucratic and rule bound.
D) They are granted authority positions because they have proper training or have proven their merit.