_____________ Industries were reserved exclusively for the public sector after the economic reforms of 1991.

Correct option is C

After the economic reforms of 1991, atomic energy generation was one of the industries reserved exclusively for the public sector in India. This sector remained under government control due to its strategic importance and national security implications.
Important Key Points:
1. Atomic energy generation: Reserved for the public sector post-1991 reforms.
2. Economic reforms of 1991: Liberalized the Indian economy.
3. Strategic importance: Ensures national security and control over nuclear resources.
4. Public sector control: Maintains government oversight and regulation.
5. Other reserved sectors: Include defense and railways.
6. Development focus: Ensures safe and regulated growth of atomic energy.
Knowledge Booster:
 Communication (b): Opened to private sector participation post-1991 reforms.
 Metro transport (d): Also involved private participation post-reforms.
 None of these (a): Incorrect as atomic energy generation is the correct answer.