15. 'Listen, Mugo! I saw my brother die. The District Officer was there and the policemen.' 'You have eyes and ears. Don't you know who betrayed your brother?' 'Karanja! You were there. General R told us.' 'No.' She recoiled from him. In his hollow cry, in his hollow cry, in his look, she knew. 'You.' 'Me - yes - me.' From the given points select the most appropriate argument.