<span> Was a South African </span>anti-apartheid revolutionary,politician<span>, and </span>philanthropist<span>, who served as </span>President of South Africa<span> from 1994 to 1999. He was the country's first black head of state and the first elected in a </span>fully representative<span> democratic election.</span>
<span>C. developing a heliocentric theory
Copernicus studied astronomy and math and said that the sun was in the center of the universe, not the Earth.
Hope this helps :)</span>
D ) they compete in elections but seldom win
