People relied on bandages more than doctors. The bandages cured cuts that were infected. The bandages helped keep cuts clean. People cut themselves less often.
I gave my students this multiple choice question: In 1921, Earl Dickson invented a bandage after he noticed his wife was unable to easily cover cuts on her hands. He covered the bandage with a chemical that sealed it so air would not enter the cut. How did solving this problem benefit others medically?

Only one answer is correct among these 4 choices:
- People relied on bandages more than doctors.
- The bandages cured cuts that were infected.
- The bandages helped keep cuts clean.
- People cut themselves less often.

Could you tell me which one is correct?

The bandages helped keep cuts clean.