The correct options are
A Presence of the Andes Mountains
C Prevailing winds and ocean currents
D Size and extent of the continent
There are many factors that influence the climate of South America. They are: the large extent and size of the continent, the presence of the Andes mountains, and the prevailing winds and ocean currents. The location of the continent also plays an important role in determining its climate. South America almost entirely lies in the southern hemisphere. So, when the northern hemisphere has winters, the southern hemisphere experiences summers, and vice versa.