The correct option is B
Malignant tumours of the skin or mucous membrane
Carcinoma is a type of cancer, that develops form epithelial cells. Specifically, it is a cancer that begins in a tissue that lines the inner or outer surfaces of the body. It occur when the DNA of a cell is damaged or altered and the cell begins to grow uncontrollably and become malignant. So, the correct answer is 'Malignant tumors of the skin or mucous membrane'.