Which statement expresses an opinion? A) The two enemies stood glaring at one another for a long silent moment. B) Ulrich von Gradwitz patrolled the dark forest in quest of a human enemy. C) The feud might have died down if the personal ill-will of the two men had not stood in the way. D) As boys they had thirsted for one another's blood; as men each prayed that misfortune might fall on the other.