B and C. These are both benefits, the other two just don't have anything to do with what the question is asking.
Pretty sure it would be nicotine.
Answer:
C, National security interests are more important than privacy concerns
The earliest civilizations developed in the river valleys of: "A. the Nile River" and "D. the Tigris <span>and Euphrates Rivers" since these areas were the most fertile--meaning that crops were able to grow far more easily. </span>
Its based on your opinion, but in mine, I would say we should keep the electoral vote. Its easier to run since we already know how to do it. Changing to a popular vote would be very similar to the electoral vote anyhow.