Four options have been given, out of which three are alike in some manner and one is different. Select the option that is different.

Eczema Psoriasis Scurvy Vitiligo

Scurvy

Eczema -  It is the disease of skin problem Psoriasis -  It is the disease of skin problem Scurvy -  It is the disease Which is lack of vitamin C Vitiligo -  It is the disease of skin problem