Because an investment takes time to mature- if you need the money in the next five years you shouldn't be investing it you should be saving it. Also, you may not have a successful investment and may not receive anything back.
The best option regarding the 1867 Reconstruction Act would be that "<span>(A) The law divided the South into districts run by the Union military," since North did not "trust" the South to implement many changes on its own. </span>
People study history for very varied reasons but among them the most important reasons are to reveal past contributions of civilazation so that we can connect the past to the present. It is also important to take notes of different scenarios so that we can create the greater pictures.