The correct answer is option 3, which is 3. The Constitution of a country outlines the framework and governance of the nation. In the case of emergencies, the Constitution typically defines different types of situations that require special measures. In this context, the Constitution of a country envisages three distinct types of emergencies. These emergencies include situations such as a national emergency, a state emergency, and a financial emergency. A national emergency is declared when there is a threat to the security of the nation, a state emergency is declared when there is a breakdown of law and order within a particular state, and a financial emergency is declared when the financial stability of the country is at risk. These different types of emergencies allow the government to take necessary actions to ensure the welfare and security of the nation.