The concept of a supply chain means we analyze and manage:

The concept of a supply chain means we analyze and manage a chain or network of upstream suppliers

option " A " is my choice                        .

Supply & manage a chain or network of upstream suppliers

Thank you for the invitation I agree with the experts answers

 1 ST OPTION-A)    a chain or network of upstream suppliers

The concept of the supply chain is a network of independent business entities and non-independent

    A)    a chain or network of upstream suppliers

a chain or network of upstream suppliers;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

Option A)) Answer ====================

A)    a chain or network of upstream suppliers>>>>>>>>>>

Yes , to manage the chain or network of suppliers constitutes the impact