Which sentence uses the simple past form of the verb dance?

a.
they had danced quickly across the stage at the auditorium.

b.
they were dancing quickly across the stage at the auditorium.

c.
they dance quickly across the stage at the auditorium.

d.
they danced quickly across the stage at the auditorium

Read the following excerpt and answer the question.if i read the temper of our people correctly, we now realize as we have never realized before our interdependence on each other; that we can not merely take but we must give as well; that if we are to go forward, we must move as a trained and loyal army willing to sacrifice for the good of a common discipline, because without such discipline no progress is made, no leadership becomes effective.(from franklin delano roosevelt's inaugural address , )using context clues, explain what interdependence means in regards to excerpt above. be sure and write your answer in complete sentences referencing the excerpt above.