Which is the best description of the author's viewpoint in this political cartoon? a) american labor unions are to blame for congress' refusal to join the league of nations. b) american labor unions are leading the nation into a situation of political unrest and economic instability. c) the federal government's efforts to suppress the activities of labor unions and radical organizations is unconstitutional. d) american labor unions should be able to go on strike against their employers in response to abuses and poor working conditions.