The correct answer is (b), Mahatma Gandhi.
The theory of trusteeship of the business assets was pronounced by Mahatma Gandhi. He believed that the rich had a moral obligation to use their wealth for the benefit of the poor. He argued that businesses should be run as trusts, with the owners acting as trustees for the benefit of the workers and the community.
Henry Fayol was a French engineer and management theorist who developed the 14 principles of management. He did not believe in the theory of trusteeship.
Jawahar Lai Nehru was the first Prime Minister of India. He was a socialist who believed in the state ownership of industry. He did not believe in the theory of trusteeship.
Karl Marx was a German philosopher and economist who developed the theory of communism. He believed that the rich exploited the poor and that the only way to end this exploitation was to overthrow capitalism and establish a communist society. He did not believe in the theory of trusteeship.