Its A , they saw Germany as the greatest threat. your welcome :)
Answer:
At the outset of the Civil War, President Lincoln had not spoken out specifically on issues relating to slavery, but on the contrary, had established that abolition of slavery was not one of the mainstays of the Union, but the maintenance of national unity.
Now, as the years and battles progressed, this position was mutating, and in 1863 President Lincoln made his Emancipation Proclamation, by which he freed all the African-American slaves that were in the southern states that were falling into the hands of the Union, urging in turn that they join the northern cause.
Thus, through these types of policies, President Lincoln was including slaves and abolitionists within his political position, leaving the Confederation in ideological check.
The correct answer to this open question is the following.
Although there are no options attached, we can say that the major factor in spurring on Iran's development of nuclear weapons in the 1980s was the victory of the Revolutionary forces in Iran, that overthrew the Shah, the last one that ruled over Iran. So in 1981, after the civil war ended, Iran authorities decided to continue the development of nuclear weapons as a way to defend the sovereignty of the country. In that time, the Soviet Union decided to support Iran sending expert scientists to help Iran to develop its own research program.