The correct option is D All of the above
Computerized axial tomography uses a computer that takes the data from multiple X-ray images of organs within the body and turns them into pictures of high resolution. It can reveal soft-tissue and other structures in the body that cannot be seen in conventional X-rays. Thus it is used for scanning of the head to detect infarction, tumours, calcifications, haemorrhage and bone trauma. Thus the correct answer is option D.