He had in his hand a heavy cane, with which he was trifling; but he answered never a word, and seemed to listen with an ill-contained impatience. And then all of a sudden he broke out in a great flame of anger, stamping with his foot, brandishing the cane, and carrying on (as the maid described it) like a madman. The old gentleman took a step back, with the air of one very much surprised and a trifle hurt; and at that Mr. Hyde broke out of all bounds and clubbed him to the earth. –The Strange Case of Dr. Jekyll and Mr. Hyde,
Robert Louis Stevenson

How does the conflict in this passage help develop the plot?

Carew’s murder compels Dr. Jekyll to immediately explain why Mr. Hyde is his heir.
Carew’s murder gives Mr. Utterson the opportunity to search Mr. Hyde’s house and learn more about him.
Carew’s murder convinces Mr. Utterson to end his friendship with Mr. Hyde.
Carew’s murder causes Mr. Hyde to turn himself in to the police and reveal that he was blackmailing Dr. Jekyll