Which of these contributed to the trend on this graph?

escalation of the Chinese and Soviet troop levels in Vietnam
the increasing use of air power to try to defeat the Vietcong
unprecedented presidential control of U. S. military forces
military reports that the U. S. was on the verge of winning the war

answer: which of the following best describes greek tragedy?

a) it was lighthearted and included songs and elaborate costumes.

b) the plays included political statement that mocked leaders and their policies.

c) the lead character suffers because of personal flaw.

d) the gods intervene negatively in the lives of men.

the answer would be d

explanation:

he government should regulate the economy

the aztecs painted books and kept records