Answer:
C. Skin
Explanation:
Poison ivy rash is caused by an allergic reaction to an oily resin called urushiol. It's found in poison ivy, poison oak and poison sumac. This oily resin is very sticky, so it easily attaches to your skin, clothing, tools, equipment and pet's fur. You can get a poison ivy reaction from: Touching the plant.
Are you referring to the disease??
<span>Valve damage can lead to the body may not getting a sufficient supply of blood. In some cases, blood can seep back into the heart since the valves are damaged. </span>
