Which of the Following Statements Is True of a Special

Which of the following statements is true of a special election?

A) It is used to fill vacancies that occur by reason of death.
B) It is held every four years at the national level to elect the president.
C) It is held at the national level when a bureaucrat is removed from office due to treason.
D) It is a regularly scheduled election held in even-numbered years .
E) It is held annually in the month of October.