Answer: D) The virtues of the Plowman as well as the buffoonishness and criminality of the Miller.
In order to summon the dead, he must kill a ram and fill a pit with his blood, and that will attract ghosts who will want to drink it. Then, he must defend it from other ghosts who want it until Terias comes to drink it.
6.231 would round to 6.23, which is less than 6.24.
