Why does Henry David Thoreau think imprisonment is ineffective?

A. Because the soul prefers solitude

B. Because the mind is not imprisoned

C. Because prisoners repeat their crimes

D. Because most prisoners break out of prison

The correct answer is option B. "Because the mind is not imprisoned".

Explanation:

Henry David Thoreau was an American essayist, who was abolitionist that at one time spent one night in jail for not paying the taxes because he did not agree with the Mexican-American War or slavery. Henry David Thoreau took advantage of his night in jail and took the story of his cellmate as an inspiration for his essays. In his book "Resistance to Civil Government" ("Civil Disobedience") he argues that imprisonment is ineffective because in his own experience the government could imprison his body, but his mind and his spirit would always remain free.

B. Because the mind is not imprisoned.