The answer is D) all of the above :)
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Answer:
The safest option to not freak out Cheryl's daughter would be to let her see her mom leave. Option C.
Option A would not help with her daughter's anxiety other than putting off trying to get rid of her anxiety.
Option B would leave her daughter feeling abandoned and could worsen her anxiety.
Option D would do the same as B.
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The ideal drug will have a high toxic dose and a low effective dose.
Hope this helps;-;