(Passage in screenshots)
Which sentence from the text supports the theme of the text?

A. Now that they had not only ceased to protect him, but had themselves become a source of trouble to him, he began to understand how great the blessing was which he had enjoyed, and to sigh for the happy days before his girls had come under the influence of his neighbor.

B. "When you were twenty your father did not, I presume, object to your learning chemistry or playing a musical instrument."

C. Never was a quiet and orderly household transformed so suddenly into a bear garden, or a happy man turned into such a completely miserable one.

D. "You must live up to your principles—you must give your daughters the same liberty as you advocate for other women."