The Fundamental Duties of a citizen of India include.
$1$. to protect and improve the natural environment.
$2$. to cherish and follow the noble ideals which inspired our national struggle for freedom.
$3$. to develop scientific temper, humanism and the spirit of inquiry and reform.
$4$. to strive towards achieving equal protection of law.

Which of the following is/are among the Fundamental Duties of citizens laid down in the Indian Constitution?
$1$. To preserve the rich heritage of our composite culture.
$2$. To protect the weaker sections from social injustices.
$3$. To develop the scientific temper and spirit of enquiry.
$4$. To strive towards excellence in all spheres of individual and collective activity.
Select the correct answer using the codes given.