The answer would be D, remember that hyphens are used to link two phrases to turn them into one conjoined
Explanation:
Working through the answers we can easily the correct usage of hyphen in the sentence. Hyphen has to be used in a way that its usage place adds logic to the sentence. In all the answers, except the last one the usage is incorrect. Red-tailed cannot be used separately. Therefore, the correct answer is the last one.
The power of kindness . The story shows how a kind gesture can soften the heart of a thieving teenager (this is a 6th-grade book, not high school babes)
a Janus mask is a mask with two faces used by actors to allow them to play two characters, the term "Janus mask" comes from the Greek mythical character "Janus" who was the two faced god of choices.