Vanessa Leggett Was Eventually Released from Jail Without Identifying Her

Vanessa Leggett was eventually released from jail without identifying her sources or revealing other confidential information because:

A) a court upheld her right to protect confidential information under the First Amendment.
B) a court held that she was protected by a shield law.
C) the federal grand jury that had subpoenaed her adjourned without indicting anyone.
D) a court ruled that her continued incarceration would constitute cruel and unusual punishment.
E) all of these.