Three well known constitutional ideas are being mixed together here: federalism, separation of powers, and parliamentary supremacy. Keep them apart and the answer falls out at once.
India shows the point in practice. The Seventh Schedule sets out the Union List, the State List and the Concurrent List, and Article 246 tells each legislature which list it may work from. If a law crosses the line, the courts can strike it down, which they could not do under parliamentary supremacy. A written constitution, a division of subjects, supremacy of the constitution, a rigid amendment procedure, and an independent judiciary are the usual markers of a federal system.
Let's summarize:
So option (A) is the answer.