Which statement best explains why tension grew between european leaders over colonialism in africa

money

Explanation: slaves were being sold by tribe leaders. Also it is new land to be used

powers  are  denied  to the  national governmentin three distinct ways: some  powers, such as the  power  to levy duties on exports or prohibit the freedom of religion, speech, press, or assembly, are expressly  denied  to the  national government  in the  constitution.

i believe it's that they cared for people. hope this ! : )