Adults Spend About ______% of Their Sleep in Stage 2

question 175

Multiple Choice

Adults spend about ______% of their sleep in Stage 2.

• A)20
• B)30
• C)40
• D)50

---

Definitions:

Marginal Cost

The change in overall cost resulting from the production of an additional unit.

Marginal Benefit

The gain in satisfaction or usefulness from consuming or producing a further unit of a good or service.

Rational Choice

A theory in economics and sociology that states individuals choose the most advantageous option considering the costs and benefits.

Best Use

The most efficient or effective utilization of a resource or asset in order to achieve the desired result or maximum value.