Which of the Following Is True About Supramajority Requirements

Which of the following is true about supramajority requirements?

A) They can be required for voting but not for quorums.
B) They can be required for either voting or for quorums,but must be part of the original articles.
C) They are automatically required for quorums of shareholders meetings and voting at such meetings when approving mergers,consolidations,or the sale of substantially all of the assets of the corporation.
D) They can be required for either voting or for quorums,and if the requirement is added in an amendment,the vote approving the amendment must pass by the same supramajority as the new supramajority requirement contained in the amendment on which is being voted.
E) They can be required for either voting or for quorums,and if the requirement is added in an amendment,the vote approving the amendment needs only to have a simple majority in order to become effective.