Fix it and get help with it
<span>The sentence which is the hook in this introductory paragraph is</span><span> For the first time in decades, Baby Boomers have been outnumbered by another group--the Millennials. The answer is letter B. This is the introductory paragraph because this explains the main idea of the paragraph and introduces the topic.</span>
No it should be
Measles are a viral infection that causes skin eruptions.
The answer to your question is D, Crying Profusely!