The method to identify individual hairs via medulla and cortex features is: A. Microscopy B. Microphotography C. Fluorescence D. Laser scanning A. Microscopy This is the correct approach. Both light and electron microscopy enable direct observation of hair's internal architecture, such as the medulla (central core) and cortex (middle layer containing pigment granules and structural traits). These unique morphological features allow for the differentiation of individual hairs, making microscopy t