The Problem of ʺScarcityʺ Applies

The problem of ʺscarcityʺ applies

A) only in underdeveloped countries because there are few productive resources in these countries.
B) to all economic systems, regardless of their level of development.
C) only in economic systems that are just beginning to develop because specialized resources are scarce.
D) only in industrially developed countries because resources are scarce in these countries.