Which selection is a good metaphor for a topic sentence? A. A tiger– it attacks any idea contrary to your own. B. Am umbrella– it covers anything you will discuss in the paragraph. C. A wall–it pr

Which selection is a good metaphor for a topic sentence?  A. A tiger– it attacks any idea contrary to your own. B. Am umbrella– it covers anything you will discuss in the paragraph. C. A wall–it protects your argument. D. A magnifying glass– it provides all the evidence needed in the paragraph.