An Older Adult African-American Woman Has Gone to the Clinic

An older adult African-American woman has gone to the clinic where a RN volunteers twice a week.She is a diabetic and has some skin breakdown on the calf of her right leg.Her skin is very darkly pigmented.To best examine the patient's skin,the nurse should use which of the following?

A) Halogen lighting
B) Artificial warming to increase room temperature
C) Natural sunlight
D) Air conditioning to lower room temperature