[Solved] Which periodontal pathogen has been found within atherosclerotic plaques? A) Streptococcus mutans B) Staphylococcus aureus C) Chlamydophila pneumoniae D) Porphyromonas gingivalis Scientific Attitude: A mindset characterized by curiosity, skepticism, and humility, alongside the methodical pursuit of knowledge. Optimistic Outlook: The tendency to maintain a positive attitude and expect good outcomes even in face of difficulties. Empirical Approach: A method of inquiry that relies on direct and indirect observation or experience, as well as empirical evidence, to gain knowledge, often used in scientific research to test hypotheses and theories. Physical Health: Pertains to the well-being of the body, free from illness, injury, or pain, and the maintenance thereof through nutrition, exercise, and lifestyle habits.