I havent read this book in a while but im pretty sure its "C"
In this poem, Lord Tennyson critiques Victorian society's ability to make actual progress, stating that every time they try to do so, it <em>sort of </em>backfires at them. While all of the mentioned themes are condensed in this short poem, the most prominent and essential one wold be <em>Revolution</em> due to his complain revolving completely around this topic.
Russian folk and revolutionary songs.
You can tell they are songs because the picketers were singing as they marched.