Correct Response: C. Many behaviors, such as consuming a calorie-rich, nutrient-poor diet and leading a sedentary lifestyle, are factors in developing cardiovascular disease. These unhealthy habits can be difficult to break and have lasting effects that build over time. Therefore, it is important to avoid establishing these behaviors at a young age. Most risk factors for cardiovascular disease (A), such as hypertension, high cholesterol, smoking, and obesity, are less prevalent in adolescents than adults. Management and treatment of cardiovascular disease (B) is not significantly more difficult in adolescents than in other age groups. Likewise, diagnostic tools (D) are available to detect cardiovascular disease in adolescents.