What is true about the proceedings of the State Legislature?

Explanation

Article 210(1) of the Indian Constitution provides that business in the State Legislature shall be transacted in the official language(s) of the State, or in Hindi, or in English. Hence, statement (b) is true. Under Article 177, the Advocate-General may take part in the proceedings of the State Legislature, but he does not have the right to vote. Under Article 211, the State Legislature cannot discuss the conduct of a Judge of the Supreme Court or of a High Court in the discharge of his duties. Under Article 212(1), the validity of proceedings in the State Legislature cannot be called in question on the ground of any alleged irregularity of procedure.