Final answer:
Dr. Gregorio Zara showed creativity by inventing an alcohol-fueled airplane engine, contributing to innovation in aviation.
Step-by-step explanation:
Dr. Gregorio Zara, the Filipino scientist, exhibited creativity in inventing an airplane engine that uses alcohol as fuel. His innovation represents a significant step forward in the realm of aviation by presenting an alternative to traditional fossil fuels. Such an invention required not just creativity, but also deep understanding of physics and engineering, demonstrating a strong commitment to scientific exploration and problem-solving.