The analysis of each statement is as follows:A. "Computed tomography and magnetic resonance imaging detect cancers of internal organs" is accurate. These imaging modalities are employed for the identification of tumors and anomalies within internal organs.
B. "Chemotherapeutic drugs are used to kill non-cancerous cells" is false. Chemotherapeutic agents primarily target malignant cells, although they may also impact healthy cells.
C. "\( \alpha \)-interferon activates the cancer patients' immune system and helps in destroying the tumour" is true. \( \alpha \)-interferon augments immune responses against neoplastic cells.
D. "Chemotherapeutic drugs are biological response modifiers" is accurate. These drugs modify the biological response to cancer through effects on the immune system or other mechanisms.
E. "In the case of leukemia, blood cell counts are decreased" is true. Leukemia disrupts blood cell production, resulting in a reduction in the quantity of white blood cells, red blood cells, or platelets.Consequently, the correct statements are C and D exclusively.