Which is the best example of "the elastic clause" as it relates to the expansion of federal power? a) the fact that congress is permitted to borrow money on the credit of the united states b) the passage of the twenty-second amendment, which limits presidential tenure to two terms c) the fact that states are prohibited from entering into any treaties, alliances or confederations d) the war powers resolution of 1973, which authorized the president to send the military into action in emergencies