PLEASE HELP Read this short passage and answer the questions below:

Excerpt from The Raven
By Brothers Grimm

Looking out from his hut one day he saw three robbers fighting and he called out to them. They stopped when they heard the call, but looking round and seeing nobody, they went on again with their fighting, which now became more furious. He cried out again, and again they paused and looked about, but seeing no one went back to their fighting. A third time he called out, and then thinking he should like to know the cause of dispute between the three men, he went out and asked them why they were fighting so angrily with one another. One of them said that he had found a stick, and that he had but to strike it against any door through which he wished to pass, and it immediately flew open. Another told him that he had found a cloak which rendered its wearer invisible; and the third had caught a horse which would carry its rider over any obstacle, and even up the glass mountain. They had been unable to decide whether they would keep together and have the things in common, or whether they would separate. On hearing this, the man said, ‘I will give you something in exchange for those three things; not money, for that I have not got, but something that is of far more value. I must first, however, prove whether all you have told me about your three things is true.’ The robbers, therefore, made him get on the horse, and handed him the stick and the cloak, and when he had put this round him he was no longer visible. Then he fell upon them with the stick and beat them one after another, crying, ‘There, you idle vagabonds, you have got what you deserve; are you satisfied now!’ After this he rode up the glass mountain.
What theme is explored in the story?
A) Do not trust strangers.
B) People will get what they deserve.
C) Appearances can be deceiving.
D) You must take what you want.
*I thoguht it was b but idk*