Final answer:
A cystoscope is a type of endoscope used in urology. It allows for examination and surgical procedures on the bladder, urinary tract, and prostate. Thus, it is most commonly used by specialists in urology, making the correct answer C) Urology.
Step-by-step explanation:
A cystoscope is a type of endoscope that is specifically designed for urological procedures, which includes examining the bladder, urinary tract, and prostate. It is an instrument that allows a urologist to view the inside of these areas and conduct various medical interventions. These devices can transmit images to an eyepiece or a video screen and may allow for surgical procedures like collecting biopsies or removing growths.
Therefore, a cystoscope is most commonly used by a specialist in C) Urology.
While endoscopes are used in various medical specialties, such as gastroenterology for examining the GI tract and cardiology for particular heart-related diagnostic procedures, the cystoscope is specific to urology due to its design and the areas of the body it is used to examine.