How can the government of a nation invest in physical capital

By building highways, railways, and airports.

Explanation:

Physical capital is one of the three main factors of production according to economic theory. Physical capital refers to tangible, concrete, man-made goods that are used in the process of creating goods and services. Therefore, this can include items such as machinery, buildings, offices, vehicles, etc. One of the ways in which the government of a nation can invest in physical capital is by building highways, railways and airports, as these are physical goods that allow us to create other goods and services.

every society, in order to meet the needs of it's people, has to answer three basic questions:

- what should we produce?

- how should we produce it?

- for whom should we produce it?

this questions must be answered in order to, option b, aid in production decisions.

every country can't produce everything, no matter how rich their land is. it may be a matter of technology, resources or geographical conditions. so, these three questions must be resolved in order to get the most of the production of each land.

hope this !