I just had this question today =D! The answer is A. The port of Boston was closed.
Back-Country is settled land. It also could be backwater. Back-Country is an area that is remote, and difficult to access. VERY isolated.
Answer:
The answer is below
Explanation:
President Dwight Eisenhower stated that Vanguard should not supposed to be in competition with the Soviet Union’s Sputnik. He attempted to make the United States citizens to realize that, contrary to the popular opinions, the two sides were not actually in any form of much talked space war.
Dwight Eisenhower further clarified that among many of the Vanguard's objectives is excellent cooperation between scientists generally, and at that moment was on schedule.