The correct answer is option 4, which is "all of the above." The Parliament is empowered to enact a law of preventive detention for reasons connected with defense, foreign affairs, and the security of India.

Preventive detention is the act of detaining individuals in order to prevent them from engaging in activities that may pose a threat to national security or public order. It allows the government to detain individuals without trial or formal charges, but with the objective of preventing future harm.

Enacting a law of preventive detention for reasons connected with defense means that the Parliament can detain individuals who are potential threats to the country`s military or national defense. This could include individuals involved in espionage, terrorism, or activities that may compromise the country`s defense capabilities.

Foreign affairs also play a significant role in national security. The Parliament can enact a law of preventive detention to detain individuals who pose threats to the country`s diplomatic relations, international security, or who may engage in activities that may jeopardize the country`s foreign policy objectives.

Lastly, the security of India is a broad term that encompasses various aspects, including internal security, border security, and protection against terrorist activities. The Parliament can enact a law of preventive detention to detain individuals who may pose threats to the country`s security, regardless of whether the