Answer: (Detailed Solution Below)
Option D: Tropical Savanna Region
Detailed Solution:
The correct answer is “Tropical Savanna Region”.
The natural region known as the 'Land of Big Games' is the Tropical Savanna Region.
This region, characterized by a combination of tropical and subtropical climates with a mix of grasslands and scattered trees, is home to a diverse range of large mammals such as lions, elephants, giraffes, and rhinoceroses.
The savanna regions of Africa, in particular, are famous for their rich wildlife and are often referred to as the 'Land of Big Games' due to the abundance of large game animals found there.