Which of the Following Defines the Concept of 'Core Competencies

Which of the following defines the concept of 'core competencies'?

A) Core competencies are the strategic capabilities that an organisation must posses if it is to survive in its chosen environment.
B) Core competencies are the activities and processes through which resources are deployed in such a way as to achieve competitive advantage in ways that others cannot imitate or obtain.
C) Core competencies are those competencies related to the core business of the organisation rather than those peripheral areas it has diversified into.
D) Core competencies are those strategic capabilities shared by all major players in a given industry sector and distinguish them from those organisations that struggle for survival.