Read the given passage carefully and answer the following questions -
A Wolf had been gorging on an animal he had killed when suddenly a small bone in the meat stuck in his throat, and he could not swallow it. He soon felt terrible pain in his throat and ran up and down, groaning and seeking something to relieve the pain. He tried to induce everyone he met to remove the bone. "I would give anything," said he, "if you would take it out." At last, the Crane agreed to try and told the Wolf to lie on his side and open his jaws as wide as he could. Then the Crane put its long neck down the Wolf's throat and with its beak loosened the bone until at last, it got it out.
"Will you kindly give me the reward you promised?" said the Crane. The Wolf, now free from pain but filled with deceit, scoffed at the request.
The Wolf grinned and showed his teeth and said: "Be content. You have put your head inside a Wolf's mouth and taken it out again in safety; that ought to be a reward enough for you. Moreover, consider it a valuable lesson about the company you keep." Disheartened yet wise, the Crane flew away, vowing to be warier in the future.
Gratitude and greed do not go together.
Based on the passage, what is the sequence of events following the wolf's request for help?
(a) The Crane puts its neck into the Wolf's throat to remove the bone.
(b) The Wolf experiences terrible pain and seeks assistance.
(c) The Crane asks for the promised reward after the bone is removed.
(d) The Wolf reneges on the promise, offering a lesson instead of a reward.