The various pigments and nutrients which are found in a cell but are not organelle because they do not perform activities like organelle perform are called cell inclusions. Some of the examples of cell inclusions are lipids, melanin, lipids, etc.
Therefore melanin is considered as inclusion. Melanin is produced by specialized cells called melanocytes from where it gets transported to skin and hair which provided the skin and hair its color. Therefore the right answer is melanin.
