Hm, this is not an easy question.
Generally the best way to prevent a nuclear disaster is not to have any weapons, so A would be a good option. But in the modern world, complete destruction of all weapons is not feasible, and people believe that since US and Russia limited their number of weapons, this is no longer such a big concern (option D, which is I think the best. Personally, however I faviour A as a solution to the problem of nuclear weapons).
President Andrew Johnson believed that the rights of the Emancipation Proclamation and its guarantees were enough to secure the civil rights of the African-Americans.
Because of that President Johnson believed that a new bill was completely unnecessary. But this was not really an isolated case. The Freedman's Bureau was facing position left and right, in their mission which included providing financial help, food and shelter to freed African-Americans and poor whites as well as resettling former slaves on the confiscated land.
The Sierra Nevada Mountain.
Answer:
First, the capital investment should increase the capacity and/or efficiency of production, which will lead to economic growth, which shows up in two critical ways. First is the ability for businesses to reinvest their profits to continue this growth, and second, the labor population and consumers who obtain employment due to this growth will have more money on hand, which will increase their spending.
Explanation: hope this helps