Choice A is the best answer. In lines 54-56("of...mines"), Stanton argues that man "mourns," or regrets, how his power has caused "falsehood, selfishness, and violence" to become the "law" of society. Stanton is arguing that men are lamenting, or expressing regret about, how their governance has created problems.
Choices B, C, and D are incorrect because Stanton does not suggest that men are advocating for women's right to vote or for female equality, nor are they requesting women's opinions about improving civic life.