Final answer:
Option d)Albinism is the pigmentation abnormality among the options provided, characterized by significantly reduced or absent melanin production affecting the skin, hair, and eyes.
Step-by-step explanation:
Of the options listed, the term that is considered a pigmentation abnormality is d) Albinism.
Albinism is a genetic disorder characterized by a reduction or complete lack of melanin pigment in the skin, hair, and eyes. This condition is caused by mutations that affect melanocytes, the cells responsible for producing melanin. Individuals with albinism have a pale appearance and require more protection from ultraviolet (UV) radiation due to their increased susceptibility to sunburns and skin cancer. This pigmentation abnormality also leads them to be more sensitive to light and can result in vision problems.