During World War I, the second phase in battles that crossed enemy lines and approached trenches was heavy bombardment. sniper fire. aerial bombing. infantry attack.

just finished this it is b. centrifugal force

explanation:

the president, prime minister, chief justice, speakers and ministers take their oath of office. the oath is taken in bengali

c. troops marched forward in close formation against newer, more accurate weapons

explanation:

i think it is in quadrant 4.

the five year plans were part of a command economy. there was little choice in what would be emphasized for the current 5 year period.

the answer to democracy or totalitarianism is a bit harder. in stalin's time, russia was totalitarian. now that's not entirely true. putin has moved towards at least the boundary.