I need help with history!!

An educatethe yuan dynasty was responsible for which of the following: i. improving the road system ii. increasing sea trade with india and south east asia. iii. extending the canal system iv. brutal warfare and ruthless killing of people in order to take over china. a. i & iii c. iv only b. ii only d. all of the above member of the government

World war i brought increased immigration to the united states from which country? germany france italy mexico

Which organization created jobs for blacks, whites, and native americans, improving parks, roads, and buildings? civil rights movement women’s movement environmental protection agency civilian conservation corps