What contributed to the Great Depression, and the failure of many banks, in the early 1930s? A. The stock market crashed and caused people to lose their trust in banks.
B. The U. S. government imposed strict regulations on the banking industry.
C. World War II caused foreign investors to withdraw their money from U. S. banks.
D. The Federal Reserve kept interest rates artificially low to encourage lending.

What was piaget's explanation as to why preschool-age children in the preoperational stage make errors on tasks requiring conservation? a) preschool children's tendency toward centration prevents them from focusing on other relevant features of a situation b) preschool children have not yet developed numerical understanding; therefore, different amounts are meaningless c) preschool children's neural-visual network is not fully matured d) preschool children have not lived long enough and accrued enough experience to know the difference between quantities