Which of the Following Is True About the Supreme Court

Which of the following is true about the Supreme Court Case, Branzburg v. Hayes?

A) It ruled that the First Amendment does not give a journalist the right to refuse to appear before a grand jury.
B) It ruled that the First Amendment does not give a journalist the right to refuse to answer the grand jury's questions about the identity of a source.
C) Both of the above
D) None of the above