**Core Concept**
LDL (Low-Density Lipoprotein) cholesterol is a type of "bad" cholesterol that can lead to plaque buildup in arteries, increasing the risk of cardiovascular disease. The American Heart Association (AHA) recommends managing LDL levels to reduce this risk.

**Why the Correct Answer is Right**
The AHA guidelines suggest that non-diabetic individuals with no history of cardiovascular disease should aim for an LDL level below 100 mg/dL. This recommendation is based on evidence that lowering LDL levels reduces the risk of major cardiovascular events. The mechanism involves reducing the amount of cholesterol deposited in arterial walls, thereby slowing the progression of atherosclerosis.

**Why Each Wrong Option is Incorrect**
**Option A:** This value is typically recommended for individuals with established cardiovascular disease, making it too aggressive for non-diabetic individuals.

**Option B:** This value is not a commonly cited target for LDL management in non-diabetic individuals.

**Option C:** This value is often recommended for individuals with diabetes or those at high cardiovascular risk, but it may be too aggressive for non-diabetic individuals without cardiovascular disease.

**Clinical Pearl / High-Yield Fact**
It's essential to note that individualized LDL targets may vary based on other risk factors, such as hypertension, smoking status, and family history of cardiovascular disease.

**Correct Answer:** A. 100 mg/dL