Option 1 -> 2025 is in the future and Adam Smith was an 18th-century economist who wrote "The Wealth of Nations".
Option 2 -> Correct author but wrong year - published in 1936, not 1935.
Option 3 -> Correct year (1936) and correct author (John Maynard Keynes).
Option 4 -> David Ricardo was a 19th-century classical economist, not the author of this work.
Hence, Option 3: 1936, John Maynard Keynes -> "The General Theory of Employment, Interest and Money" is one of the most influential economics books of the 20th century, published in 1936 by British economist John Maynard Keynes. This groundbreaking work laid the foundation for Keynesian economics and revolutionized macroeconomic theory by challenging classical economics and introducing concepts like aggregate demand, the multiplier effect, and the role of government intervention in managing economic cycles. -> correct