Which of the Following Best Explains 'A Value Chain Focus

Which of the following best explains 'a value chain focus on environmental issues'? 

A)  The focus is from the sourcing of raw materials to the way consumers utilize products 
B)  This includes all activities that are focused on an efficient use of natural resources of energy, raw materials and other natural resources. 
C)  The profit aspect provides guidelines for sustainable financial development of a company, measured over a longer period of time. 
D)  This includes all activities that are focused on providing good labour conditions for employees and a labour climate in which individual employees are able to develop their skills and competencies.