Why Do State Supreme Courts Have Considerable Staying Power with Regard

Why do state supreme courts have considerable staying power with regard to court-made constitutional law?

A) The supreme court is the most powerful and dominant institution under most state constitutions.
B) Most state legislatures collectively agree to give state supreme courts nearly unlimited power in terms of their statutory and constitutional interpretation.
C) The legislative process to amend the state constitution is extremely difficult compared to amending a statute.
D) Most state legislatures are too focused on substantive issues to worry about pressuring the decision making of supreme courts.