Final answer:
Increasing pitch in medical imaging allows a given volume of anatomy to be covered faster in a CT scan without necessarily increasing the radiation dose to the patient. Pitch and volume are independent; volume is related to intensity, while pitch is related to frequency.
Step-by-step explanation:
The question you've asked about the reasons to increase pitch seems to relate to imaging technology, specifically in the context of computed tomography (CT) scans or similar modalities. The correct answer to the question "Which of the following is a reason to increase pitch" is (b) a given volume of anatomy can be covered faster. Increasing the pitch in CT scanning means that the table moves faster through the scanner, which allows the anatomy to be scanned quicker, thereby reducing the time the patient is exposed to radiation. However, it does not necessarily mean that the radiation dose is increased, which is generally something to be minimized for patient safety.
It's important to remember that in the context of sound, pitch is often confused with volume, but these are distinct characteristics. Pitch is related to the frequency of the sound waves, while volume refers to the intensity. Turning up the volume on a stereo does not change the frequency of the sound waves, and thus does not change the pitch.