(This if you are 47% on edg.) Here is an answer the the question:

STORY: Maybe it was my brother Bart's interest in medical problems that propelled me into a whole new direction -- not projectors or sound equipment, but the enhancement of medical devices used around the world to help those with serious and chronic illnesses such as diabetes, Tallahassee, and more.

—"On Becoming an Inventor

Dean Kamen

QUESTION: What may have influenced Kamen’s bias toward working on inventions for medical devices?

A.) Kamen’s brother had an interest in medical problems.

B.) Kamen needed to use a medical device for a chronic illness.

C.) Segways are used in many parts of the world

- So the answer to this is C. (For edg 2020)