Answers:
A) Six
B) By closing one paragraph with the closing tag </p>), and starting the new paragraph with another opening tag: <p>.
C) The <b> tag makes words bold.
D) The <em> tag italicizes words. If you used <i> you’d get the same result, but <em> is used when you want to emphasize a word whereas <i> indicates the text should be in italics, like a book title, but doesn’t mean it’s especially important.
E) <hr/> displays a horizontal line