The correct answer is A) a towing connection. Inflatable liferafts are required to be equipped with a towing connection, which allows the liferaft to be towed by a rescue vessel. This is an important safety feature that enables the liferaft to be moved to a more accessible location for recovery of the survivors. The other answer choices, such as canned milk, a portable radio, or a Very pistol, are not standard equipment for inflatable liferafts and are not required by the relevant regulations governing the carriage and equipment of these survival craft.