2155. You are on a tankship discharging oil and stripping cargo to a designated slop tank. This slop tank can then be __________.

gravitated to the wings and pumped out with the main pumps
pumped directly ashore as all the other tanks are being emptied by the main pumps
stripped out and pumped directly ashore into the mainline as the remaining cargo tanks are pumped out with the main pumps
pumped out with the main cargo pump at the end