How did misundertstanding of the role of doctors lead to the cayuse war

Ineed to write an essay about harriet tubman

The holocaust of world war ii resulted in a) the nazis effectively used propaganda to gain and hold power in germany. b) ethnic regimes carried out mass devastation. c) deporting all european jews to the island of madagascar. d) the systematic mass slaughter of european jews and and others in nazi concentration camps during world war ii.

How did the growth of the middle class affect social reform during the industrial revolution?