Question

the general theory of employment, interest and money was written by
john maynard keynes.
adam smith.
milton friedman.
friedrich august von hayek.

Explanation:

"The General Theory of Employment, Interest and Money" is a famous work in economics, and it was written by John Maynard Keynes. Adam Smith is known for "The Wealth of Nations", Milton Friedman for his work on monetarism, and Friedrich August von Hayek for his contributions to classical liberalism and business cycle theory, none of whom wrote this specific work.

Answer:

John Maynard Keynes.