The federal government is composed of three distinct branches: legislative, executive, and judicial, whose powers are vested by the U.S. Constitution in the Congress, the President, and the federal courts, respectively. Is it what you need? I doubt I can help with the other question of yours. You may check it also at Prime Writings site. They have the extended database with the articles about your topic. Hope, I helped.
Antitrust law having a monopoly of any one business, oil in his case
India is a secular democracy because the government treats all religions equally. In western countries secularism means isolation of faith from the government, but in India it's an acceptance and equal support of each faith from the government level.
B. A reduction in imports and a rise in exports
If Robert McNamara is one of the options, then he is the correct answer - he was important in the Vietnam War, but not during the WWII.