Answer the following question given this paragraph: 

Skin grafts are required when the damage from trauma or infection cannot be closed with sutures or staples. Watch this video (http://openstaxcollege. org/l/skingraft) to learn more about skin grafting procedures.


Q: What are required when the damage from trauma or infection cannot be closed with sutures or staples?

 Choices:

- tree grafts

- debris grafts

- bone grafts

- skin grafts

A:
skin grafts
