What is meant by Zbigniew Brzezinski's term, metamyth?

What is meant by Zbigniew Brzezinski's term, metamyth?
 
  a. Metamyth refers to the false distinction between Fascism and Communism.
  b. Metamyth is any pronouncement by a totalitarian regime that is not objectively valid.
  c. Metamyth refers to the alleged grand, transcendental truth supplied by the party and intended to liberate people from a lack of certainty.
  d. Metamyth refers to the false story of Stalin's supposed heroic deeds in the November Revolution.
  e. Metamyth refers to traditional religions which totalitarianism condemns as opiates of the people.