Nell Is Exhausted but Gets Up in the Middle of the Night

question 20

Multiple Choice

Nell is exhausted but gets up in the middle of the night to pick up her crying infant. This altruistic behaviour is best explained by

• A) evolutionary psychology
• B) social norms
• C) none of the choices are correct
• D) all of the choices are correct

---

Definitions:

Interior Staircase

A set of stairs located inside a building, facilitating access between its different floors.

One-story House

A residential structure featuring all of its living spaces on a single level, without any stairs leading to additional floors.

Not (p And Q)

A logical operation that negates the conjunction of two propositions; true only when either P is false, Q is false, or both are false.

Compound Proposition

A statement formed by combining two or more propositions with a logical operator, such as "and," "or," or "not."