What is the purpose of a topic sentence in a paragraph?

Question

A. to explain where readers can find more information about the topic of a paragraph
B. to express the central idea of a paragraph
C. to describe the most important details that will be included in the paragraph
D. to provide evidence for the ideas in the paragraph

Answer 1

The purpose of a topic sentence in a paragraph is:

B. to express the central idea of a paragraph

The topic sentence typically outlines the main point or focus of the paragraph, setting the stage for the details and evidence that follow. This helps readers understand the overall point that will be discussed in that section of the text.