The reason why economies must make these decisions is due to the fact that because resources are limited.
What are resources?
These are all of the factors of productions that are used to take care of the needs of man. They are what is is used in the production process for all goods.
It is important to note that human needs are unlimited but the resources that are needed for meeting these needs are only few in number.
Read more on resources here:
https://brainly.com/question/1290230
