Dr. Smith is a researcher studying the lifestyle habits of centenarians-individuals who have lived to be 100 years old or more. She identifies several common factors among these centenarians: a balanced diet, regular physical activity, strong social connections, and a positive outlook on life. Based on her research, which of the following statements is most accurate?

A. Genetic factors are the sole determinant of reaching centenarian status: While genetics play a role, lifestyle and environmental factors are equally or more important in longevity. B. Physical activity alone is the key factor in becoming a centenarian: Physical activity is important but must be combined with diet, social connections, and mental health for optimal longevity. C. Social connections have no impact on the longevity of individuals: Strong social ties have been shown to improve mental health and longevity. D. Environmental and lifestyle factors play a significant role in achieving and maintaining health in old age: Research shows that diet, physical activity, emotional well-being, and supportive social environments all contribute to longer, healthier lives.