The thing that was heard before the armies then meet at the climax of so called the battle on ice in Alexander Nevsky would be a. a chorus singing a homophonic phrase. Hope this is the right answer and would be of help.
I'm not in this class but what it sounds like Yes when you are taking photos you are aiming to take pictures of things like The vows and the exchanging of the rings and the kiss so it is both telling a story and capturing emotion.
The answer is both. Despite most of Duchamp's work was a sort of spoof (including "N*ude Descending a Staircase"), the consequences of his trajectory represent a critical watershed in the History of Art.