Placid means peaceful and tranquil.
The best synonym for placid would be C. peaceful.
I would say no because a simile is having something referred to something else for example as brace as a lion or crazy like a fox.
Answer: Slaves were whipped for falling short of their cotton picking quotas.
Explanation: This answer can be found in Chapter 13 of <em>"From twelve years a slave"</em>
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B. Bone denesity because as we age our bones become brittle and can break easily hence why older people often break their wrist or hips when falling. And being fit can help.
Answer: because it draws a conclusion based on the evidence presented throughout the text
Explanation:
The reason for the author including this information at the end of the text instead of at the beginning is because it draws a conclusion based on the evidence presented throughout the text.
Since the evidences were presented throughout the text, the conclusion gives a conclusion that follows the evidences provided.