A nurse is reinforcing teaching about skin changes in the older adult client with a newly licensed nurse. Which of the following findings should the nurse identify as benign, age-related change commonly seen in older adult clients

a) "Presence of a new mole with irregular borders and color changes."
b) "Increased elasticity and firmness of the skin."
c) "Development of seborrheic keratosis, characterized by raised, wart-like growths."
d) "Rapid healing of wounds and injuries."