The answer is:
The major industrial cities became overcrowded as workers from rural areas moved there.
and
Because of the steady increase in food production, the population nearly doubled between 1800 and 1850.
The correct answer is C - res publica.
The res publica were a class of people which we would today consider to have been the early aristocrats of Early Rome. Later on, the class of wealthy romans and those who had power were called the patricians.
The correct answer to this open question is the following.
Although the question is incomplete because it does not refer to a specific moment or place in the history of the US, we can say that if it refers to President Abraham Lincoln's Emancipation Proclamation of 1863, then his new freedom was 'inconceivable" to African Americans in the southern states until the Union Army won the American Civil War in 1865. However, although the ratification of the 13th Amendment to the Constitution of the United States happened in December 1865, the road to freedom for African Americans in the south was long to come. During Reconstruction, Jim Crow Laws and the Black Codes were southern legislations that limited freedom and the civil rights of Black people.
Muslims believe that Islam<span> is the original, complete and universal version of a primordial faith that was revealed many times before through prophets including Adam, Noah, Abraham, Moses, and Jesus. As for the Quran, Muslims consider it to be the unaltered and final revelation of God.</span>