The parliament can legislate on the subjects in the State List if the

  1. President issues an order authorizing it to do so
  2. Supreme Court gives authority to the Parliament in this regard
  3. Rajya Sabha passes a resolution by two-thirds of its members present and voting, declaring it expedient to legislate on a State matter in the national interest.
  4. Prime Minister issues a special order


Article 249(1) defines the power of the Parliament to legislate with respect to matter in the State List in the national interest.

The correct option is C.