Investment bubbles are problematic for which of these reasons?

Investment bubbles are problematic for which of these reasons?
 
  a. People with lower incomes are unable to participate.
  b. Growth happens so quickly that people tend to ignore risks.
  c. Investors pump too much money into the economy all at once.
  d. The government assumes all of the risk of speculative behavior.

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Federal governments cannot always demand policy change in their component states, but they are often able to exert their influence in other ways. What would be an example of this dynamic?
 
  a. allowing a foreign government to impose order in the component state
  b. withholding grants from states that refuse to adopt a national policy standard
  c. adopting a new political ideology to better serve the given policy
  d. dissolving the component state

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As young people begin to pay income or property taxes, they tend to __________.
 
  a. support a lower minimum age for voting
  b. understand the political process in a more abstract way
  c. vote for more liberal candidates
  d. become more interested in elections