Which of the following is an important theme in tang and song paintings?

a. the glories of war
b. a balance of color and light
c. personal achievement
d. the spiritual essence of nature

i think it is either c or d but not sure which one

What was the main cause of the russian revolution? a. the protests against the war with poland b. the tremendous war losses of world war 1 c. the protests against the treaty of brest- litovsk d. the losses dictated by the treaty of versailles