Problem: A shocking report is published in several newspapers, based on anonymous sources, alleging that the President is running a gambling ring out of the basement of the White House for his own personal profit. Based on these reports, a Senate committee issues a subpoena to the President, asking for any records or other documents related to any business or other enterprise the President may be running from the White House. The President's counsel files a lawsuit in federal court, seeking to quash the subpoena. What is the best argument that the President's counsel can make to support the motion to quash? Group of answer choices a. Congress does not have authority to issue a subpoena to the President for personal information. b. Congress does not have authority to issue a subpoena to the President for any information. c. The subpoena is not related to any legislative purpose. d. Congress has not shown a heightened need for the information.