Choose the correct alternative. I. Car Wash Operation is just one of the scandals among eighty other scandals that appeared in the last three years in Brazil. II. President, former presidents, great businessmen and renowned politicians are involved in scandals and other investigations arising from Car Wash Operation. III. The workers' Party was dragged into the corruption scandal accused of receiving bribes to fund political campaigns and vote buying. IV. Car Wash Operation began under former President Lula when it was discovered that the oil company Petrobras and large Brazilian construction companies were oversupplying their contracts.