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