According to your textbook, a free good is A) a good paid for ...

[madam-professor]

According to your textbook, a free good is
 
  A) a good paid for by someone else.
  B) a stolen good.
  C) a good given away by charities.
  D) a good obtained without any sacrifice whatsoever.

Question 2

According to your text, there are substitutes for any scarce good,
 
  A) but some demand curves are vertical.
  B) but the elasticity of demand for most goods is zero.
  C) but the law of demand only holds for inexpensive goods.
  D) but it often takes time for consumers to seek out useful substitutes.

[Li Jun]

Answer to Question 1

D

Answer to Question 2

D