Which of the following statements is not correct?

Which of the following statements is not correct?

All executive action of the Government of a State shall be expressed to be taken in the name of the Chief Minister.
It is the duty of the Chief Minister to communicate to the Governor of the State all the decisions of Council of Ministers relating to the administration of the State.
The Governor makes rules for the more convenient transaction of the business of the Government of the State.
The validity of rules made by the Governor shall not be called in question.
This question was previously asked in
UPSC SO-Steno – 2017
Statement A is not correct. All executive action of the Government of a State shall be expressed to be taken in the name of the Governor (Article 166(1)). The Chief Minister is the head of the Council of Ministers and advises the Governor, but executive actions are formally taken in the Governor’s name.
Formal executive actions at the state level are carried out in the name of the Governor, similar to how executive actions at the Union level are carried out in the name of the President. The Chief Minister is the head of the government but not the formal head of the executive for issuing orders.
Statement B is correct; Article 167(a) makes it the duty of the Chief Minister to communicate to the Governor all decisions of the Council of Ministers. Statement C is correct; Article 166(3) empowers the Governor to make rules for the more convenient transaction of the business of the Government of the State. Statement D is correct; Article 166(2) states that the validity of rules made by the Governor under Article 166 shall not be called in question on the ground that they are not rules made by the Governor.