Which phrase from the text excerpt explains the Duke's motivation for allowing Valentine to stay? (2) The Duke of Milan, as was the custom in those days, thought himself at perfect liberty to dispose of his daug feelings on the subject. He suspected there was some love between Silvia and Valentine, and saw many little th his Court and his daughter's company, but, fearing that his jealousy might perhaps be leading him into error, and act rashly, but by gentle means to try to discover the truth. In the meanwhile he kept a strict watch over Silvia, an he gave directions that Silvia should be lodged in an upper tower, the key of which was brought every night to hi​