Why would the framers (writers of the
Constitution) allow for the Constitution to
be changed?

The possibility of amending the Constitution helped ensure its ratification, although many feared the powerful federal government it created would deprive them of their rights. To allay their anxieties, the framers promised that a Bill of Rights safeguarding individual liberties would be added following ratification.

your answer would be a) no nation can be economically self-sufficient.

stay in school!