At What Age Is an Infant Able to Distinguish Male

question 9

Multiple Choice

At what age is an infant able to distinguish male from female voices, discriminate between ethnic groups, and match grandma's voice to her face?

• A)3 months
• B)8 months
• C)1 year
• D)2 years

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Definitions:

Period Costs

Expenses that are not directly tied to the production of goods and are expensed in the period in which they are incurred.

Average Costs

The cost per unit calculated by dividing the total cost of production by the number of units produced.

Variable Cost

Expenses that change in direct proportion to the amount of goods or services produced.

Fixed Cost

Expenses that do not change with the level of production or sales, such as rent, salaries, and loans.