**Core Concept**
Cardiovascular disease (CVD) risk assessment is crucial for early detection and prevention. The best indicator of CVD risk is a measure that reflects the cumulative effect of multiple risk factors, including hypertension, diabetes, hyperlipidemia, smoking, and family history.

**Why the Correct Answer is Right**
The correct answer is the Framingham Risk Score (FRS), which is a widely used and validated tool for estimating 10-year cardiovascular risk. The FRS takes into account several risk factors, including age, sex, total cholesterol, HDL cholesterol, smoking status, and systolic blood pressure. These factors are weighted and combined to produce a risk score that ranges from 1% to 20%. The FRS is a more accurate predictor of CVD risk than any single risk factor alone.

**Why Each Wrong Option is Incorrect**
**Option A:** LDL cholesterol is an important risk factor for CVD, but it is not the best indicator of CVD risk. While high LDL levels are associated with increased risk, they do not account for other risk factors such as blood pressure and smoking.
**Option B:** Blood glucose levels are a risk factor for CVD, particularly in patients with diabetes. However, they are not the best indicator of CVD risk, as they do not take into account other risk factors such as blood pressure and lipid profiles.
**Option C:** Family history of CVD is a risk factor, but it is not a direct measure of an individual's risk. While a family history of CVD may increase an individual's risk, it does not provide a quantitative estimate of risk.

**Clinical Pearl / High-Yield Fact**
The Framingham Risk Score is a valuable tool for identifying individuals at high risk of CVD. However, it is essential to remember that the FRS is only an estimate, and individual risk factors should be taken into account when making clinical decisions.

**Correct Answer: D. Framingham Risk Score**