Outsourcing is $$

ANSWER

$$ 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

$$

the use of resources within the firm to provide products or services

$$

organizational strengths or abilities, developed over a long period, that customers find valuable and competitors find difficult or even impossible to copy

the use of supply chain partners to provide products or services

$$ I DON'T KNOW YET