Betty is a retired registered nurse who fills in at the local hospital when the staff is in need of nurses. she is frequently called in without advance notice and must take over without any time to get oriented. to quickly grasp the expectations and needs of the situation, betty must rely on what sternberg calls intelligence.

Robert Sternberg formulated the triarchic theory of intelligence that differentiate intelligence in 3 components, componential, experimental and practical.

The one referred in the text is the practical intelligence that is related to adapting to a situation or environment, in this way Betty can become aware of the situation and perform her duties.

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 !

i am pretty sure it is d.