Closed wounds occur when the skin remains intact and the tissue beneath remains hidden. Abrasion is not a closed wound.
Closed wounds are caused by blunt trauma, and the skin does not tear or bleed on the surface, but the underlying tissue is damaged and bleeds internally. The injured tissue is not visible here.
Closed wounds are frequently caused by blunt trauma, and while the injured tissue is not exposed, bleeding and damage to underlying muscle, internal organs, and bones can occur.
The following are examples of major types of closed wounds: Contusions are caused by blunt trauma that causes pressure damage to the skin and/or underlying tissues.
Therefore, the correct answer is option d. abrasion.
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