( c) To explore, as the work of the group of experts in development planning referred to in Economic and Social Council resolution 1079 ( XXXIX) progresses, the possibility of establishing a more comprehensive and coherent set of goals and objectives, so that a balance-sheet of the United Nations Development Decade and subsequent periods may be prepared and a method devised for the systematic evaluation of progress and prospects ; . ( d) To review their plans and programmes in the light of the above-mentioned goals and objectives in ?rder that appropriate internat~onal action may be taken 111 support of efforts at the national and regional levels ;