In 1974, a nationwide strike by all the employees of the Railways was led by which of the following leaders?

Answer: Option (George Fernandes) is marked as the correct answer.

The nationwide railway strike in 1974 was led by George Fernandes who was the president of the All India Railwaymen's Federation (AIRF) at the time.
Explanation: This strike was one of the most notable actions by Fernandes, a prominent Indian trade unionist and politician.
Key points about the 1974 railway strike:
Leader: George Fernandes
Union: All India Railwaymen's Federation (AIRF)
Date: May 1974