Which best explains the purpose of the ninth amendment

   Any right under the Constitution cannot be interpreted and enforced by violating the rights of others

Explanation:  The Ninth Amendment speaks of human rights as part of the Bill of Rights, so the Ninth Amendment is a statement concerning human rights and the interpretation of the Constitution. It argues that respecting and emphasizing certain rights in the Constitution cannot be such as to violate the rights of anyone else, and that right to non-infringement of rights is enjoyed by all people. This amendment is not a constitutional restriction but a declaration of human rights.

d

explanation:

c) troops march forward in close formation against newer, more accurate weapons