Which phrase from “president kennedy’s special message to the congress on urgent national needs” provides an urgent tone to the passage?
a. all of you have lived through the last four years and have seen the significance of space and the adventures in space
b. unless every scientist, every engineer, every serviceman, every technician
c. a means for even more exciting and ambitious exploration of space, perhaps beyond the moon, perhaps to the very end of the solar system itself
d. a new course of action, a course which will last for many years and carry very heavy costs: 531 million dollars in fiscal ’62