john maynard keynes developed new economic theories in response to the stock market crash of 1929. great depression of the 1930s. first and second world wars. economic boom of the 1950s.
the answer is a. 250 percent.
the 2 most inportant 2 me is the right 2 bear arm because u need 2 protect ur self. and freedom of speech.
Explanation:hope this helps