Idon't understand the princpal behhinid the subject for study history?

According to nationalists, a nation-states government should be a. controlled by european monarchs b. led by an appointment president c. voted on by european parliaments d. chosen by that nation-state

How did a woman’s education differ from a man’s education prior to the mid-19th century? a.women’s schools were unsanitary. b.women’s teachers were inadequate. c.women’s opportunities were unequal. d.women’s schools were more expensive

Which of these statements describes a long-term impact of european imperialism in africa? a. african countries joined together to present a united front against imperialism. b. europeans paid african countries after colonizing them, offering these new countries a fresh start. c. european powers drew the current borders, splitting ethnic groups among modern countries. d. africans became more loyal to their countries than to their ethnic groups.