Which statement provides the best operational definition of "childhood obesity"? Children who eat unhealthy foods and spend too much time watching television and playing video games Body weight at least 20 percent higher than a healthy weight for a child of that height The tendency of children today to weigh more than children of earlier generations A distressing trend that can lead to health issues including type 2 diabetes and heart disease

## Step 1: Identify the Requirement<br />### The question asks for the best operational definition of "childhood obesity". An operational definition should be specific, clear, and measurable.<br />## Step 2: Evaluate Each Option<br />### - Option A describes behaviors associated with childhood obesity but does not define it.<br />### - Option B provides a specific and measurable definition: "Body weight at least 20 percent higher than a healthy weight for a child of that height".<br />### - Option C gives a comparative statement about children today versus earlier generations, lacking specificity and measurability.<br />### - Option D discusses consequences of childhood obesity rather than defining it.<br /><br />#