What was President Regan’s goal when he said: "In the 1950s Khrushchev predicted: ‘We will bury you.’ But, in the West today, we see a free world that has achieved a level of prosperity and well-being unprecedented in all human history. In the Communist world, we see failure, technological backwardness, declining standards of health, even want of the most basic kind -- too little food." a. to erase people’s commitment to their country b. to strengthen values for a political cause c. to motivate his audience to action d. to strengthen people’s commitment to their country