CAT stands for
A) Computerised axial tomography
B) Computerised automated tomography
C) Computational axial tomography
D) None of the above

Hint: These technology is used in Biology for X-ray. It is used for 3-dimensional images of internal organs and structure of the body.

 Complete answer: Computerised axial tomography (CAT) or also CT scan is an X-Ray procedure that combines X-Ray images taken from different angles with the aid of a computer to generate cross-sectional(tomographic) images of specific areas of a scanned object. The computerised axial tomography (CAT) scan can reveal some soft-tissue and other structures that cannot be seen in conventional X-rays. CAT scanning uses a computer linked to an X-Ray machine to make a series of detailed pictures of areas inside the body. The pictures are taken from different angles and are used to create three- dimensional views of tissues and organs. In biology, Computerised axial tomography is used.

Additional Information :
 Advantages of Computerised axial tomography (CAT) :
>It completely eliminates the superimposition of the images outside the area of interest.
>It can easily help in differentiating a different kind of tissue.
>They have high contrast resolution.
>It avoids the invasive insertion of a catheter.

So, the correct answer is A i.e., Computerised axial tomography (CAT).

Note: CAT scanning technique was invented in 1972 by the British engineer Godfrey N. Hounsfield (Later Sir Godfrey) and the South African physicist Alan Cormack. CAT scanning was already in general use by 1979, the year Hounsfield and Cormack were awarded the Nobel Prize in Medicine or Physiology for its development. The CAT is also known as computerised tomography.