All of the following contributed to the collapse of the stock market in 1929
a- businessmen started companies called "investment trusts" that bought stock on credit
b- investors poured money into risky investments
c- investors bought stock on margin
d- stock prices reflected the real value of companies

i do believe its (d) it allowed the government to offer pioneers sixty acres of western land if they lived on it and made improvements to it.

explanation: signed into law in may 1862, the homestead act opened up settlement in the western united states, allowing any american, including freed slaves, to put in a claim for up to 160 free acres of federal land. by the end of the civil war, 15,000 homestead claims had been established, and more followed in the postwar years