Which is the best alternative considering some of the statements are true (T) and others are false (F) ? I– Modern building façades might be dangerous. II– The sensors show when the glass is breaking or falling. III– A glass fissure is not easily seen in the beginning. IV– The sensors can help control the building temperature. V– A change in the signal indicates that the pane is not defective. VI– Changes in temperature do not have any influence on the size of glass fissures. The best alternative is