The tone of the speech and the formal expressions that Jordan uses in this speech are a clear indicator that she is speaking to members of the House Judiciary Committee. The language used by Jordan is legal, and so is the topic that she covers.
Formal approach would be appropriate for the President of the US, but the only title with which the President is addressed is <em>Mr. President</em>, not <em>Mr. Chairman</em>. The speech tone and content are too formal to address people of alternatives C and D.
