I think it’s is mischievous because what she was doing was treating the other person as a human being which was wrong. Just my thought I could be wrong !!! :))
apt means appropriate or suitable in circumstances.
Explanation:
b or c. I guess it's the only one that works well with this definition and you also have to look at context clues. "My mistress was, as I have said, a kind and tender-hearted woman" but with the second half it says " In entering upon the duties of a slaveholder, she did not seem to perceive that I sustained to her the relation of a mere chattel and that for her to treat me as a human being was not only wrong but dangerously so. Slavery proved as injurious to her as it did to me."
So, I'm guessing b or c but leaning more towards b.
1.Turtles caught on land or at sea were a favourite dish of the pirates 2.Turtles weighing more than 100 pounds could be kept alive for weeks on deck. 3. The turtle pursued by pirates trundled around the deck