Realism, symbolism, and expressionism developed in america in the
colonial period
twentieth century
period following the revolution

Period following the revolution is your answer.

i think its either b or c

explanation:

ok, so basically your gonna start with 350 ok. so there's 60 seconds in a minute so that means you he can go up 10 ft per minute. soo, after 3 minutes he should be at 260 ft after three minutes : )