If the range of the possible points that can be chosen is from 0 to 3, then the possible points that can be picked are: (0, 1), (0, 2), (0, 3) (1,0), (1, 1), (1, 2), (1, 3) (2,0), (2, 1), (2, 2), (2, 3) (3,0), (3, 1), (3, 2)
Only the coordinates (0,3) and (0,3) as the third point will produce a right triangle. The probability equation is: P = successful outcomes / total outcomes P = 2 / 10 P = 0.2 or 20%
They'd be MOST affected by whichever answer choice would make climate change there even worse because in South Africa, the climate is already really bad. Based on that I'd say THE ANSWER IS C) the spread of the Kalahari Desert