Which idea is known as the political-economic doctrine that holds government ought not interfere ...

Which idea is known as the political-economic doctrine that holds government ought not interfere with the operations of the free market?
 
  a. constitutional interpretation
  b. laissez-faire
  c. national power and property rights
  d. conservative retrenchment

Question -2-

According to the Supreme Court in the Civil Rights Cases (1883), why was Congress unable to prohibit discrimination in public accommodations?
 
  a. Congress cannot regulate public accommodations because they involve interstate commerce.
  b. Congress cannot regulate public accommodations because they tend to be owned by private individuals.
  c. Congress cannot regulate public accommodations because it lacks the authority to spend money without the permission of the states.
  d. Congress cannot prohibit discrimination because doing so violates the First Amendment right to freedom of speech.

Question -3-

What principle suggests that a court should not overturn a precedent unless it is absolutely necessary?
 
  a. judicial review
  b. stare decisis
  c. prior restraint
  d. judicial privilege