The 2007 Recession Was Triggered Primarily by

The 2007 recession was triggered primarily by

A) a steep drop in the stock market that caused the savings of many ordinary Americans to evaporate.
B) bad loans made by the government and private banks to large but inefficient companies.
C) an unwillingness of American consumers to borrow money.
D) poor government regulation of a banking industry that made mortgage loans to people who couldn't repay them.
E) problems with major European economies that lessened the ability of American companies to export goods to Europe.