Which example demonstrates an individual solving a public health problem using research?

Research involves gathering and applying information to understand or address a problem. Dr. Andrew Bastawrous developed a smartphone app to help diagnose eye diseases, showing how research and technology can be used to address a public health problem. The other choices describe donating shoes, advocating for clean water, or providing community-based health care, but do not specifically demonstrate solving the problem using research.

AI-written and checked against the verified answer.