C. He must find happiness by helping others rather than pursuing money.
Explanation:
A Christmas Carol is a novel written by Charles Dickens.In the novel, Ebenezer Scrooge is a grumpy and selfish old man who was visited in his dream by three spirits. Each with different revelations to Scrooge.
Scrooge was shown a grave with his full name on it in his dream by the ghost. He pleads with the ghost to share his lesson so as to avoid the fate of his deceased partner. The ghost takes Scrooge to strange places to observe and see what human nature looks like.
After the visitation from the spirits, he had the revelation to help others than pursuing money to have happiness. On the Christmas day, he goes around the town to correct his past bad acts and deeds by assisting and helping people.
Paradox! "Make haste" means to hurry up, while slowly is the opposite, meaning with low speed. Therefore this two words/phrase contradict each other and the answer is a paradox.