The Most Common and Preventable Cause of Mental Retardation Is

question 241

Multiple Choice

The most common and preventable cause of mental retardation is:

• A) CMV exposure.
• B) alcohol.
• C) toxoplasmosis.
• D) maternal smoking.

---

Definitions:

Convenience Samples

A sampling method where participants are selected based on their convenience or accessibility to the researcher.

Fixed Expenses

Costs that do not fluctuate with the volume of business or level of activity within a short period.

Breakeven Point

When the expenses and the revenue are equal, so that there is no profit or loss.

Expense Function

A mathematical expression that describes how costs change with variations in the volume of activity.