Correct Answer: C
Explanation:
Sol. A Sphygmomanometer is a device used to measure blood pressure, composed of an inflatable cuff to restrict blood flow and mercury or mechanical manometer to measure the pressure. It is always used in conjunction with a means to determine at what pressure blood flow is just starting and at what pressure it is unimpeded. Manual Sphygmomanometers are used in conjunction with a stethoscope.