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?

  Options: 
 A. People relied on bandages more than doctors.
 B. The bandages cured cuts that were infected.
 C. The bandages helped keep cuts clean.
 D. People cut themselves less often.
Answer: C