The Supreme Court has recently held unconstitutional Illegal Migrants Determination Act, 1983 on the ground of violation of moral obligation of Centre under:

A) Art. 355

B) Art. 356

C) Art. 256

D) Art. 257

This MCQ is part of the UP PSC Previous Year Questions (PYQs) series, focusing on UPPSC Prelims 2005 (GS Paper I)