Which best identifies a subplot in julius caesar and explains its significance? brutus clashes with calpurnia after caesar's murder; it adds to the suspense about who will die next. brutus makes amends with antony; it relieves the reader's suspense about who will rule rome. brutus has a conflict over whether to trust casca; it shows that brutus is the rightful leader of rome. brutus struggles with himself over whether he acted in rome's best interests; it builds suspense about how this will be resolved.