Answer :
B is the correct one from looking at how the aunt is strict with work but is also really kind.
The sentence that best states a central theme of the passage is: b.Strictness may conceal kindness, and both strictness and kindness can be ways of caring.
In this passage, we learn about the author's description of her aunt Agatha. Her strictness was a way of teaching her niece discipline.
Her strictness might be misunderstood as harshness but in actuality, she was a kind person. She told her niece about diligence and hard work. She also fed her at the right time.
So the central theme of the text is that strictness may conceal kindness, and both strictness and kindness can be ways of caring.
Learn more about the central theme here:
https://brainly.com/question/734603