Read the chapter's mini case, and then answer the question.

chapter's mini case

When a car manufacturer has been "making" goods and services in$-$house, and then decides to "buy" these goods and services from suppliers, it is said that the firm has outsourced these goods services. American car manufacturers who outsource goods or services to a supplier who is also located in the United States are engaging in which of the following?

a$.$ Insourcing

b$.$ Offshoring

c$.$ Global outsourcing

d$.$ Domestic outsourcing