What is the title of Thomas Hobbes's work that advocates for absolute sovereignty grounded in social contract theory?
Explanation
Thomas Hobbes's famous treatise advocating for the necessity of an absolute sovereign, founded on the notion of a social contract, is titled 'Leviathan.' The other options are unrelated works: 'The Litany During the Plague' is a poem, 'Ideal Commonwealth' refers to Thomas More's 'Utopia,' and 'Progress of Knowledge' corresponds to Francis Bacon's 'The Advancement of Learning.'