Explanation:

- Option 1: Article 210

- This article is not relevant to matters of religion. It pertains to the language used in various parts of government proceedings and legislation within India.

- Option 2: Article 5

- Article 5 deals with citizenship at the commencement of the constitution. It doesn't pertain to religious affairs.

- Option 3: Article 26

- This article provides the freedom to manage religious affairs. It allows religious groups the right to establish and maintain institutions for religious and charitable purposes, and to manage their own affairs in matters of religion.

- Option 4: Article 370

- This article was about special autonomy to the region of Jammu and Kashmir. It has been abrogated as of August 2019.