Question

refer to \youth and tobacco use\ in the lesson for a complete version of this text.
why does the author use the phrase \dependent on nicotine\ in this sentence?
there is evidence that youth may be sensitive to nicotine and that teens can feel dependent on nicotine sooner than adults.

to emphasize—with language that is objective and unbiased—that teens can become addicted to tobacco products

to point out—with language that is common and filled with slang—that teens and adults both have problems with tobacco products

to imply—with language that is personal and compassionate—that teens may start smoking because of peer pressure

to suggest—with language that is highly charged—that teens might need to use medicines to help them stop using tobacco products

Explanation:

1. Analyze the first option: The phrase "dependent on nicotine" is objective (not using emotional or slang terms) and "dependent" relates to addiction. The sentence is about youth sensitivity and earlier dependence, so emphasizing teens can become addicted with unbiased language fits.
2. Analyze the second option: The phrase is not common slang; it's a formal term, so this is incorrect.
3. Analyze the third option: The phrase doesn't relate to peer pressure, and the language isn't personal/compassionate, so this is incorrect.
4. Analyze the fourth option: The phrase doesn't suggest using medicines, and the language isn't highly charged, so this is incorrect.

Answer:

A. to emphasize—with language that is objective and unbiased—that teens can become addicted to tobacco products