Explanation:

Both statements 2&3 are incorrect.

The major Amendments made in the Constitution by the 42nd Amendment Act are

• Preamble: The characterization of India as ‘Sovereign Democratic Republic’ has been changed to ‘Sovereign Socialist Secular Democratic Republic’.
• The words ‘Unity of the nation’ have been changed to ‘Unity and integrity of the nation’. Hence, statement 1 is correct.
• Fundamental Rights and Directive Principles: A major change that was made by the 42nd Constitutional Amendment was to give primacy to all Directive Principles over the Fundamental Rights contained in Articles 14, 19 or 31.
• Fundamental Duties: The 42nd Amendment Act inserted Article 51-A to create a new part called IV-A in the Constitution, which prescribed the Fundamental Duties to the citizens.

The Constitution (44th Amendment) Act, 1978

• A new provision was added to Article 74(1) saying that the President could require the council of ministers to reconsider its advice to him, either generally or otherwise and the President should Act in accordance with the advice tendered after such reconsideration.
• It has been provided that an Emergency can be proclaimed only on the basis of written advice tendered to the President by the Cabinet. Hence, statement 2 is not correct.
• Right to Property has been taken out from the list of Fundamental Rights and has been declared a legal right.

Hence option 2nd is correct.