The correct answer is (a).
Hugh Toye was a British journalist and author. He is best known for his book Springing Tiger: A Biography of Subhas Chandra Bose, which was published in 1959. The book is a comprehensive biography of Bose, who was an Indian nationalist leader who played a leading role in the Indian independence movement.
Louis Fisher was an American journalist and author. He is best known for his book Gandhi: His Life and Message for the World, which was published in 1954. The book is a biography of Gandhi, who was an Indian lawyer, anti-colonial nationalist, and civil rights activist who employed nonviolent resistance to lead the successful campaign for India’s independence from British rule, and in turn inspired movements for civil rights and freedom across the world.
Webb Miller was an American journalist who was known for his coverage of the Spanish Civil War and the Second World War. He is best known for his book I Found No Peace, which was published in 1940. The book is a collection of Miller’s dispatches from the Spanish Civil War.
(b) and (c) are incorrect because they are not the authors of the book Springing Tiger.