Which of the following would be a good clincher sentence for a classification paragraph that begins with the topic sentence below? Only three kinds of e-mails get my attention.

A. If the e-mail is not from my family, or does not have an
exclamation point or an unusual subject heading, I don't read it.

B. The first kind of e-mail is one from a family member.

C. The second kind of e-mail is one that contains an exclamation point to indicate importance.

D. The third kind of e-mail is one with an unusual subject heading.