Pleaae help please

Once the plague became airborne, how could it then be spread?

He three-fifths compromise, which was made at the constitutional convention, represented differences of opinions over which issues?

How are the republican and democratic presidential candidates chosen? a. they are nominated by their state governments. b. each is nominated by his or her respective party. c. each is chosen by the governor of his or her home state. d. they are chosen by the house of representatives.