The correct answer is Both 1 and 2.PreambleIt is an introductory statement in a document that explains the documents philosophy and objectives.In a Constitution, it presents the intention of its framers, the history behind its creation, and the core values and principles of the nation.The preamble basically gives the idea of the following things/objects:Source of the ConstitutionNature of Indian StateStatement of its objectivesDate of its adoptionThe ideals behind the Preamble to Indias Constitution were laid down by Jawaharlal Nehrus Objectives Resolution, adopted by the Constituent Assembly on January 22, 1947.Unity of the Nation was changed to Unity and Integrity of the Nation.Therefore, the word 'Unity and Integrity of the Nation was not mentioned in the Original Constitution. Hence, Statement 2 is correct.Equality of status and equality of opportunity find mentioned in the Preamble. Hence, Statement 1 is correct.The term Equality means no section of society has any special privileges and all the people have been given equal opportunities for everything without any discrimination. Everyone is equal before the law.Although not enforceable in court, the Preamble states the objectives of the Constitution and acts as an aid during the interpretation of Articles when language is found ambiguous.It is indicated by the Preamble that the source of authority of the Constitution lies with the people of India.