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?