Which of the Following Best Explains an Enterprise Resource Planning

Which of the following best explains an Enterprise Resource Planning (ERP) system? 

A)  Company wide information system for managing the company's operational and support processes. 
B)  Company wide information system for managing the company's administrative processes, its human resources and its materials resources. 
C)  Company wide information system for managing the company's financial resources. 
D)  Company wide information system for managing the company's operational and support processes, its administrative processes, its human resources, its materials resources and financial resources.