Respuesta :
When a country is said to be engaged in specialization, this refers to D. producing only the goods that can be made most efficiently.
What is specialization?
This refers to when a country focuses on producing goods and services that it is most efficient in.
They can know that they are more efficient in these goods because they incur a lower opportunity cost to produce them.
Find out more on specialization at https://brainly.com/question/24448534.