The correct answer is A. Each program was based on the knowledge of the previous ones.
The Mercury program was the first American manned space program developed between 1961 and 1963 in the framework of the space race with the Soviet Union.
Based on the knowledge provided by the Mercury program, in 1965 NASA launched the second American manned space program, Gemini, whose main goal was to develop the ability necessary for space encounter and coupling.
These abilities were fundamental for the third program, the Apollo missions, whose main objective was to put the first men on the moon, a goal that was accomplished in 1969.
Answer: depending on whom one reads, Polk comes across as either a nearly great President or as a man who missed great opportunities. Clearly, his impact was significant. Polk accomplished nearly everything that he said he wanted to accomplish as President and everything he had promised in his party's platform: acquisition of the Oregon Territory, California, and the Territory of New Mexico; the positive settlement of the Texas border dispute; lower tariff rates; the establishment of a new federal depository system; and the strengthening of the executive office. He masterfully kept open lines of communication with Congress, established the Department of the Interior, built up an administrative press, and conducted himself as a representative of the whole people. Polk came into the presidency with a focused political agenda and a clear set of convictions. He left office the most successful President since George Washington in the accomplishment of his goals.
Bar increase in food production the bridge British population could be fair to lower prices with less effort than ever before the surplus of food man that bridge families can use the money they said to purchase manufactured goods
It allowed the US to trade with other country's and it created a war
