The correct answer is option 4: Three. In India, there are three types of emergencies that can be proclaimed. The first type is the National Emergency, which can be declared in case of a threat to the security of the country due to war, external aggression, or armed rebellion. The second type is the State Emergency, which can be declared in case of failure of constitutional machinery in a state. The third type is the Financial Emergency, which can be declared in case of a threat to the financial stability of the country. It is important to note that these emergencies grant the central government certain powers to handle the situation effectively.