Constitutions are restricted to involve in the type of cases deal by the federal court.
Option (b);
EXPLANATION:
The cases Federal court deals with are limited in U.S. Constitution. They mostly hear only constitutional cases such that the cases on federal law or bankruptcy cases or any cases on the law that the U.S government must have passed.
They may also hear cases that involve political parties from different states. Even though the types of cases Federal court handles are less, they provide great importance for the public and also for the press. Thus constitutions can't able to interfere in the cases deal by the federal court.