Carcinoma
Carcinoma is cancer that is formed due to the uncontrolled division of the epithelial cells (that originate from all three germ layers- endo, meso and ectoderm). These cells form the inner lining of various organs. Carcinomas include cervical cancer, breast cancer, skin cancer, brain cancer, lung cancer etc. About \(80\%\) of cancers are carcinomas.
Sarcoma
Sarcoma is the type of cancer that begins in the connective tissue. T
Leukaemia
Leukaemia is a type of blood cancer characterised by an abnormal increase in white blood cells (leucocytes) because of their increased formation in the bone marrow.
Lipoma
Lipoma is a lump of fat that is painless, harmless and grows between the skin and muscle layers.
Hence the correct option is (a).