Sir Godfrey Hounsfield developed the diagnostic technique of

The correct option is D CT scanning
A computed tomography (CT) scan, commonly referred to as a CT, is a radiological imaging study. The CT scan combines many X-ray images from different angles of the body. A computer processes these images to create cross sectional images. CT scan gives a more detailed information of tissues like bones, blood tissues than X-rays.

Sir Godfrey Hounsfield developed the first CT scanner for which he was awarded the Nobel Prize in medicine in 1979.