The correct answer is D) All of the above. Inflatable liferafts are provided with a lifeline, a jackknife, and a towing connection. These items are required safety equipment for inflatable liferafts as per the regulations governing the carriage and equipping of liferafts on vessels. The lifeline allows crew to hold on to the liferaft, the jackknife is for cutting the liferaft free if needed, and the towing connection allows the liferaft to be towed if necessary. All of these features are essential for the safe operation and use of an inflatable liferaft in emergency situations at sea.