Explanation:

- Article 371H: This provision grants the Governor of Arunachal Pradesh special responsibility with respect to law and order in the state. It gives the Governor discretionary powers to ensure peace and stability.

- Option 1: Sikkim

- The special provisions related to Sikkim are under Article 371F, not 371H.

- Focuses on preservation of the local laws and the socio-political composition of the state.

- Option 2: Arunachal Pradesh

- Correct: Article 371H pertains directly to Arunachal Pradesh.

- Emphasizes the Governor's discretion over law and order.

- Correct Answer

- Option 3: Nagaland

- Special provisions for Nagaland are under Article 371A.

- Focus on religious or social practices of the Nagas.

- Option 4: Mizoram

- Special provisions for Mizoram are under Article 371G.

- Looks into social practices and land ownership laws.