What is one reason that more people didn’t foresee the economic collapse of the 1930s? a: few people understood the risks involved with buying stock on loan. b: the signals of economic slowdown did not appear to be serious to economists or politicians. c: politicians, economists, and investors had a limited amount of economic data available to them at the time. d: the press focused its attention on the successes from wall street rather than true state of the economy.