Which of the Following Statements Best Defines Black Markets

Which of the following statements best defines black markets?

A) They represent situations in which consumers pay, often exorbitant amounts, for items not readily available.
B) They represent situations characterized by consumer theft.
C) They are actions taken to limit the use of scarce natural resources.
D) They are situations where interest of others is focused on rather than self-interest.
E) They refer to obtaining supplies and making products in accordance with social responsibility and sustainability values.