Which one of the following statements about a topic sentence and a main idea is accurate?
a. a topic sentence is the central idea of a paragraph, while a main idea is the central idea of an entire text.
b. a topic sentence does not change position, but the main idea can be found in multiple places.
c. a topic sentence and a main idea are always the same thing.
d. a topic sentence is found in the introduction, while a main idea is found in the conclusion.

The question says,'which one of the following statement about a topic sentence and a main idea is accurate. The correct option is A. A topic sentence is a sentence which expresses the main idea of the paragraph in which it occur. It is the most important sentence in a paragraph and it is the focus of the paragraph in whic it exists. The main idea of a write up is the overarching theme of that write up, it is usually stated in a single sentence called the thesis statement.

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