What was the “court-packing” plan? A. a plan devised by FDR to add new justices to the Supreme Court who would rule in favor of New Deal legislation B. a plan devised by the Chief Justice of the Supreme Court to encourage justices who were over seventy years of age to retire C. a plan devised by enemies of FDR to add justices to the Supreme Court who would rule against New Deal legislation D. a plan devised by Speaker of the House to reduce the number of Supreme Court justices from nine to six