Which was a characteristic of the cities of the Indus River valley? A. Emphasis on artistic expression
B. Emphasis on defense
O C. Emphasis on sanitation
D. Emphasis on tribute to the gods

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.