Which of the following is an excise tax?

Which of the following is an excise tax?
 
  a. tax levied on corporate income
  b. tax levied on personal income
  c. tax levied on the consumption of a certain good
  d. tax levied on the top 2 percent of income earners

Question -2-

Why were Americans skeptical of Barack Obama's proposals to reform health care?
 
  a. Americans were afraid of losing what they liked about their existing health care.
  b. Americans were concerned that Obama's proposals left many without health insurance.
  c. Americans wanted a single-payer health care system instead of the reforms Obama proposed.
  d. Americans were convinced that Obama was mostly looking out for interests of the health care industry and the insurance companies.