Step 1: Question Breakdown:
The question requires identifying the specific article in the Indian Constitution that establishes the Parliament for the Union.
Step 2: Article Analysis:
Article 79: This article explicitly establishes the Parliament, stating it "shall consist of the President and two Houses: the Council of States (Rajya Sabha) and the House of the People (Lok Sabha)."
Article 19A: This article does not exist. Article 19 concerns freedom of speech.
Article 356: This article deals with President's Rule in states, unrelated to Parliament's formation.
Article 135: Article 135 concerns the Supreme Court's jurisdiction, not the establishment of Parliament. There is no sub-clause (d).
Step 3: Conclusion:
The correct answer is Article 79, which states "there shall be a parliament for the union".