According to the information presented in the lecture, which of the following inventions commonly used today was first designed by leonardo da vinci? a. a helicopter b. a parachute c. a flying machine d. a water tower

The best answer is "A"

a helicopter

Explanation:

Leonardo da Vinci studied the flight of birds as well as their structure and was obsessed with the concept of bringing different machines together to achieve this. It was named ornithopter meaning a wing-flapping device intended to fly.