The "Speech or Debate" Clause in Article I, Section 6

The "speech or debate" clause in Article I, Section 6, of the Constitution means that a member of Congress

A) may make any allegations in connection with official duties and normally not be sued for defamation.
B) cannot be arrested for misdemeanors while Congress is in session.
C) must agree to public debates with announced opponents during the campaign.
D) cannot engage in foreign diplomacy without the approval of the administration.
E) cannot be served with parking tickets issued within the District of Columbia.