Which of the Following Statements About Subpoenas Is Correct?​

Multiple Choice

Which of the following statements about subpoenas is correct?​

A) ​A subpoena can only be issued by agents of a grand jury or of the court.
B) ​A subpoena is one of the two ways to gain access to difficult to obtain information.
C) ​A subpoena must be signed by the chair of the grand jury.
D) ​A subpoena's only purpose is to access difficult to obtain documents.