The correct option is A Immune system cancer - Lymphoma, Epithelial cell cancer - Carcinoma, Connective tissue cancer - Sarcoma, White blood cell cancer - Leukemia
Lymphoma is the cancer of the lymphatic system which is involved in body's defense mechanism that is the immune system.
Carcinoma is the type of cancer that develops from the epithelial cells.
Sarcoma is the cancer of connective tissue such as bone, muscle, etc.
Leukemia is the cancer of white blood cells. Thus, the correct answer is option A.