Apocket veto results if: a. ​ the president refuses to sign a bill and congress adjourns within ten working days after the bill has been submitted to the president. b. ​ congress revises a bill after a presidential veto and the president approves the revised bill within ten congressional working days. c. ​ the president sends a bill back to congress after rejecting just one item in the bill on grounds of constitutionality. d. ​ the president does not send a bill back to congress after ten congressional working days. e. ​ congress overrides a presidential veto with a two-thirds vote by the members present in each chamber within ten congressional working days.