Which quotation from the excerpt from "rice stadium moon speech" by president john f. kennedy, september 12, 1962most effectively expresses the concept that outer space should be a place of peace and a place for research? a)"'…but i do say that space can be explored and mastered without feeding the fires of war, without repeating the mistakes that man has '" b)"'…i regard the decision last year to shift our efforts in space from low to high gear as among the most important decisions that will be made during my incumbency…'" c)"'…only if the united states occupies a position of pre-eminence can we decide whether this new ocean will be a sea of peace or a new terrifying theater of war.'" d)"'…because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one which we intend to win, and the others, too.'"