The correct answer is: C. 20o to 35o.
The middle latitudes are the latitudes between the Tropic of Cancer and the Tropic of Capricorn, which are 23.5 degrees north and south of the equator, respectively. This region is characterized by temperate climates, with four distinct seasons. The middle latitudes are also home to a large portion of the world’s population, as they are well-suited for agriculture and other human activities.
Option A is incorrect because it includes the tropics, which are characterized by hot, humid climates. Option B is incorrect because it includes the Arctic and Antarctic Circles, which are characterized by cold, polar climates. Option D is incorrect because it includes the subtropics, which are characterized by warm, dry climates. Option E is incorrect because it includes the tropics and the subtropics.
The middle latitudes are a diverse region with a wide range of climates, landscapes, and cultures. They are home to some of the world’s most important cities, such as London, New York, and Tokyo. The middle latitudes are also a major center of agriculture, industry, and commerce.