In the country of Zouman, in Persia, there lived a Greek king. This king was a leper, and all his doctors had been unable to cure him, when a very clever physician came to his court. He was very learned in all languages, and knew a great deal about herbs and medicines.

As soon as he was told of the king's illness he put on his best robe and presented himself before the king. "Sire," said he, "I know that no physician has been able to cure your majesty, but if you will follow my instructions, I will promise to cure you without any medicines or outward application."

The king listened to this proposal.

"If you are clever enough to do this," he said, "I promise to make you and your descendants rich for ever."

–“The Story of the Greek King and the Physician Douban,”

Andrew Lang

What motivates the king to offer Douban great riches? Check all that apply.

Douban is an accomplished physician.
The king’s advisors know that Douban is wise.
The king believes that Douban needs money.
The king has a disease that no one can cure.
Douban was recommended by his doctors.