Onsite Restoration Inc. begins renovating houses for Property Company under a contract for a stated amount per house. After six months, Onsite demands an extra $20,000 per house, stating no reason for the extra $20,000, but asserting that it will stop work if it is not paid. The agreement is a. enforceable as the consideration is past. b. unenforceable as an illusory promise. c. unenforceable due to the preexisting duty rule. d. enforceable due to unforeseen difficulties.

The former chairman of the federal reserve, alan greenspan, used the term "irrational exuberance" in 1996 to describe the high levels of optimism among stock market investors at the time. stock market indexes such as the s& p composite price index were at an all-time high. some commentators believed that the fed should intervene to slow the expansion of the economy. why would central banks want to clamp down when the economy is growing? a. to block the formation of unsustainable speculative asset bubbles. b. to curtail excessive profits in the banking system. c. to prevent inflationary forces from gathering momentum. d. all of the above. e. a and c only.