Respuesta :
The correct answer is D. During the 1930s, extreme drought, and high winds made life incredibly difficult in the Great Plains region of the United States.
Explanation:
The main purpose of a topic sentence is to briefly state the main idea of a paragraph. Due to this, the topic sentence is the more general sentence in a paragraph, which encloses all the other details. Moreover, in most cases, the topic sentence is the first sentence.
This occurs in the paragraph presented because the first sentence "During the 1930s, extreme drought, and high winds made life incredibly difficult ..." is the topic sentence considering this sentence states the main point of the paragraph, which is how difficult was life due to the Dust Bowl. Moreover, other sentences only explain the difficulties of the Dust Bowl, which means the first sentence states the main point (topic sentence) and other sentences explain this point.