<span>Horace Mann wanted to see "strong school systems" established because he believed they were necessary in a democracy, since an uneducated populus often makes terrible decisions. </span>
Answer to your question would be skilled workers
The Vietnam war was a developed war. The Cuban Missile Crisis was a part of the Cold War, when USSR began building nuclear missile bases in Cuba. This was a problem because the missiles could reach important U.S. cities. The Berlin Wall was also technically a result of WWII.
The correct answer will be b