Option 1 is incorrect as DPSPs are not enforceable by the courts.
Option 2 is correct as DPSPs are non-justiciable which means they are not enforceable by the courts for their violation.
Option 3 is correct as the Constitution itself declares that these principles are fundamental in the governance of the country and it shall be the duty of the state to apply these principles in making laws. Thus, they do influence the making of laws by the state.