As part of being readmitted to the Union, states had to ratify the new amendments to the Constitution. The Union did a lot to help the South during the Reconstruction. They rebuilt roads, got farms running again, and built schools for poor and black children. Eventually the economy in the South began to recover.
D. a period of artistic and literary achievement in Europe from the late fourteenth to the early seventeenth centuries
The Renaissance began in Italy in the late 1300's. It was inspired the finding of ancient artifacts in the Ottoman Empire. The Renaissance was inspired by the works of the Greek and Roman Empire. The Renaissance introduced modern thinking to include humanism, secularism, individualism, and skepticism. The movement encouraged thinking and learning as well as a creative spirit which led to writings and artwork marking the period.
What I can understand from your question, rational use suggest that you use things in a rational way or in a logical,astute,prudent way. This means, for example, you are lost in an island and you know someone is going to look for you in the following 10 days, still you dont know in which day you are going to be rescued. Because you are an inteligent human being you will decide to use your things in a rational way as if you dont do it you will have a shortage of supplies and most probably you are going to die.
-Hope this works...