The correct answer is option 4: The aid and advice of ministers is not required for declaring the ordinance.

Option 1 states that the power of making ordinances is not discretionary, which means that the Governor does not have the freedom to use this power as they wish. This suggests that the Governor must have valid reasons for issuing an ordinance and cannot do so arbitrarily.

Option 2 states that the Governor may withdraw the ordinance at any time. This means that if the circumstances change or if the ordinance is no longer needed, the Governor has the authority to revoke it.

Option 3 states that the ordinance power can be exercised when the Legislature is not in session. This implies that the Governor can use ordinances to enact laws even when the legislature is not sitting or not in session. This allows for swift action to be taken in emergencies or urgent situations.

However, option 4 is incorrect because the aid and advice of ministers is indeed required for declaring an ordinance. The Governor acts on the advice of the council of ministers while exercising the power to issue ordinances. The Governor does not have the power to declare an ordinance without the aid and advice of the ministers.

Alert - correct answer should be option 4: The aid and advice of ministers is required for declaring the ordinance.