Pleistocene
Explanation:
The Pleistocene epoch began about two million years ago and ended about 11,700 years ago.
Argentina, the pope’s home country, is extremely white. Its most “diverse” province, Chubut, is close to 90% white.
Most whites in South America, like in North America, live outside the tropics, which run from Havana to Rio.
The most likely answer is A) Geothermal