Step 1: Understanding the Forty-second Amendment Act.
- The Forty-second Amendment Act of 1976, officially titled the "Constitution (Forty-second Amendment) Act, 1976," amended the Indian Constitution. Key changes included adding "Socialist" and "Secular" to the Preamble and aiming to achieve economic justice and equal opportunity as outlined in Article 38(B).
Step 2: Conclusion.
Therefore, option (B), the Forty-second Amendment Act, is the correct answer.