The correct option is (b) Burns
The explanation is: Burns are among the most dangerous and painful injury. Skin is the first line of defence of the body and performs many other functions. Thus, if the burns are severe or if a large part of the skin has been burned off, it is often fatal for the person. If the burnt skin is removed from the body within a given time, it may cause infections but once the skin has been removed, regrowing it is a long and painful process. Thus, an artificial skin is a quick and a fast way. It can cover the injured area and may slowly get degraded or peeled off as the new skin grows over it.