Correct Option: A

Mahatma Gandhi got inspiration of Civil Disobedience by reading a book of David Thoreau who was an American author, poet, philosopher, abolitionist, naturalist, tax resister, development critic, surveyor, historian, and leading transcendentalist. He is best known for his book Walden, a reflection upon simple living in natural surroundings, and his essay Civil Disobedience, an argument for individual resistance to civil government in moral opposition to an unjust state. Thoreau’s philosophy of civil disobedience later influenced the political thoughts and actions of such notable figures as Leo Tolstoy, Mohandas Gandhi, and Martin Luther King, Jr.