The answer is B. reason is The tie vote between Jefferson and Burr in the 1801 Electoral College pointed out problems with the electoral system. The framers of the Constitution had not anticipated such a tie nor had they considered the possibility of the election of a President or Vice President from opposing factions - which had been the case in the 1796 election. In 1804, the passage of the 12th Amendment corrected these problems by providing for separate Electoral College votes for President and Vice President.
People used the telegraph to send messages via Morse Code. Which was a variation of taps on a small pad sending electronic pulses that would make a beeping sound. There would be someone on the other end that would listen to the pulses and write them down into words
The Nile River
The Tigris and Euphrates Rivers
Hope that helps :)
https://www.quora.com/What-gifted-musician-was-heavily-involved-in-the-1960s-Civil-Rights-Movement-with-Martin-Luther-King-and-Caeser-Chavez try this link, someone asked the question here