Outsourcing is . ANSWER Unselected making a high-level, often strategic, decision regarding which products or services will be provided internally and which will be provided by external supply chain partners Unselected organizational strengths or abilities, developed over a long period, that customers find valuable and competitors find difficult or even impossible to copy Unselected the use of supply chain partners to provide products or services Unselected the use of resources within the firm to provide products or services

the use of supply chain partners to provide products or services.

Explanation:

In Business management, outsourcing can be defined as a process which involves an agreement between two companies that allows for the provision of services or job functions by another.

When a company is outsourced, it engages the service of another company (third-party) to perform some of its duties rather than the use of an in-house department or employees to handle them. The outsourcing firm is saddled with the responsibility of physically distributing the goods or services of the outsourced company.

Hence, outsourcing refers to the use of supply chain partners to provide products or services.

it's obviously d. it could be c though.