Integrity is best defined as a personal characteristic of someone who has:

Integrity is best defined as having high moral standards and professional ethics, which reflects a person's adherence to principles of honesty, fairness, and respect for others. Individuals with integrity demonstrate consistency in their values, actions, and principles, earning the trust and respect of others. In a healthcare context, integrity is essential, as professionals often face situations that require ethical decision-making, protecting patient information, and advocating for patient care. This characteristic fosters an environment of accountability and respect, ultimately leading to better outcomes for patients and healthcare teams.

The other options may represent valuable skills or qualities but do not encompass the essence of integrity. Being good at math or understanding diversity, while important in their own rights, doesn't directly correlate with moral principles or ethical behavior. Similarly, being a leader can involve integrity, but not all leadership styles are rooted in moral values; therefore, leadership alone is not synonymous with integrity.