Final answer:
A burn should be covered after cooling it to prevent infection, which is crucial as it protects the injury and supports the body's natural wound-healing response. Covering the burn keeps out bacteria and other pathogens during the vulnerable stage of healing. The option (A) is correct.
Step-by-step explanation:
A burn should be covered after cooling it primarily To prevent infection. Covering a burn with a clean, dry dressing helps protect the vulnerable area from bacteria and other pathogens that might cause infection. After an injury, such as a burn, the body initiates a wound-healing response which includes the formation of a blood clot to stop bleeding, followed by various stages involving different cells to repair the damaged tissue.
In the case of skin injuries, it is important to watch for increased redness, swelling, and pain as these can signify infection, which can impede the healing process and pose further health risks. The purpose of covering a burn is not to enhance visibility, increase pain, or speed up healing directly, although a proper dressing can create conditions that are more favorable for healing. Therefore, option (A) is correct.