According to the classical perspective (the one from the 19th century that I described at the beginning of my first lecture video), what kinds of things could cause recessions or other economic downturns? Select the correct examples from the following list. a. Hurricanes b. Crop failures due to drought c. Earthquakes d. Greed e. Epidemics f. Asset bubbles g. Expectations h. Poverty i. Wars j. Insufficient demand