Suppose That There Is a General Feeling in Certain Parts

Suppose that there is a general feeling in certain parts of the country that judges should be elected, rather than appointed. A system of electing judges can be introduced only through a constitutional amendment. That means that

A) the new system must be supported by at least half the provinces, and those provinces must contain at least two- thirds of the country's population.
B) the Prime Minister must call an election.
C) there must be unanimous agreement by all of the provincial legislatures.
D) the new system must be supported by Parliament, plus two- thirds of the provinces, where those consenting provinces represent at least half of the Canadian population.
E) the federal Parliament can adopt the new system as long as there is majority support in both the House of Commons and the Senate.