How do Keynesian economic policies differ from the traditional laissez-faire pol

How do Keynesian economic policies differ from the traditional laissez-faire policies developed by Adam Smith?

A) Laissez-faire advocates for “cutthroat” capitalism, while Keynesian policies seek to spread wealth equally among a nation’s citizens.
B) Keynesian economics advocate for increased government control of economics, while traditional laissez-faire argues for a hands-free approach.
C) Smithian policies advocate for increased spending and stimuli for government-run businesses, while Keynesian economics argues for a hands-free approach.
D) The more liberal Smithian economies distribute wealth more evenly among society, while Keynesian economics tends to distribute wealth among the top one percent.

This is for my political science class.