By 3 Months of Age, Babies Look Closely at the Eyes

question 179

Multiple Choice

By 3 months of age, babies look closely at the eyes and mouth when studying faces. This change in focus is due to _____.

• A) increased interest in other humans
• B) increased awareness of caregivers' identities
• C) changes in willingness to interact with adults
• D) improvements in visual scanning ability

---

Definitions:

Operating Leverage

A measure of how sensitive a company's operating income is to changes in revenue.

Marginal Tax Rate

The rate of tax applied to the next dollar of taxable income, indicating how much tax will be paid on an additional dollar earned.

Operating Cash Flow

A measure of the cash generated by a company's normal business operations.

DOL

Degree of Operating Leverage, a ratio that measures how a company's operating income changes with a change in sales, indicating the effects of fixed costs on profits.