Which of the Following Statements Is True

Which of the following statements is true?

A) Federal regulatory agencies are established by the president of the United States.
B) Most federal regulatory agencies were created during the Great Depression of the 1930s.
C) State regulatory agencies have jurisdiction over both interstate and intrastate commerce.
D) Some regulatory agencies are independent bodies headed by commissioners, while others are in existing government departments and are headed by administrators within those departments.