The sentence needs commas because the participial phrase is essential.
Answer:
<em>a state of despair, typically one which results in rash or extreme behaviour.</em>
<em>have a nice day</em><em> </em><em><</em><em>3</em>
Answer:
it,s answer will be false
I would say D: it creates a tone of calmness.
Let me know if I was correct or horribly wrong.