D. Crowded, unsanitary living conditions in tenements
The 25th amendment of the United States constitution states the rules the President and Vice President must follow in case one or both of them leave the position open. The president is the one responsible in appointing the replacement to the vice president. In the case of impeachment of the president, he is required to leave the office. Answer in 2 is True.
Competing conquistadors arrived and fighting broke out which killed half the Spanish in 1519. Then later in 1521 European diseases killed most of the Natives which allowed Cortes to lead a brutal attack and succeed.
In the ancient Roman republic, the consuls were "<span>D)magistrates elected to serve for one year as chief executives of the Republic". They were usually people of high social status and held a majority of the responsibilities of the state. </span>