In Recent Years, the Ratio of Earnings of the Typical

question 116

Multiple Choice

In recent years, the ratio of earnings of the typical U.S. college graduate to the earnings of the typical high school graduate without additional education has

• A) risen as the demand for skilled labor has increased relative to the demand for unskilled labor.
• B) risen as the demand for skilled labor has decreased relative to the demand for unskilled labor.
• C) fallen as the demand for skilled labor has increased relative to the demand for unskilled labor.
• D) fallen as the demand for skilled labor has decreased relative to the demand for unskilled labor.

---

Definitions:

Dopamine

A neurotransmitter involved in controlling movement and posture, modulating mood, and playing a central role in positive reinforcement and dependency.

GABA

GABA (Gamma-Aminobutyric Acid) is a neurotransmitter in the brain that inhibits nerve transmission, calming nervous activity.

Cortisol

A hormone produced by the adrenal glands during stress or when blood-glucose levels are low, belonging to the steroid class.

Cerebral Cortex

The outer layer of neural tissue of the cerebrum in the brain, playing a key role in memory, attention, perception, cognition, awareness, thought, language, and consciousness.