UGC NET -Economics: follow the page https://www.facebook.com/NET-Economics-Crash-course-106586388400610/ Robbins’s definition is superior to the earlier definitions because I. It is more scientific. II. It takes into account all types of human wants, material or non-material, as well as of all types of persons whether living in a society or not. III. It widened the scope of economics. IV. It is a positive science. Of these statements: (a) I and II are correct (b) II and III are correct (c) II and IV are correct(d) All are correct follow the page https://www.facebook.com/NET-Economics-Crash-course-106586388400610/