The correct option is A First
The constitution states that all the laws existing or made after the enactment of the Constitution shall be invalid if they are violative of the Fundamental Rights. Since Nationalisation of land occurred to be the necessity of the hour after independence for acquiring lands from the zamindars and distribute them among marginalised section to the society. But because the right to property was fundamental rights, questions were raised regarding this step of the Government and judiciary interfered by declaring any such law as illegal because of constitutional mandate. The first constitutional amendment Act of 1951 added Ninth Schedule in the Constitution to shield act of the government of acquiring property as not discriminatory and excluding judicial review on acts listed in Ninth Schedule.