Final answer:
A sphygmomanometer is the medical equipment used to determine blood pressure. It consists of an inflatable cuff to restrict blood flow, and a manometer to measure the pressure. A stethoscope is also used to listen for the sounds of blood flow.
Step-by-step explanation:
A sphygmomanometer is the medical equipment used to determine blood pressure. It consists of an inflatable cuff to restrict blood flow, and a manometer to measure the pressure. In order to determine the blood pressure, a stethoscope is also used to listen for the sounds of blood flow. So, the correct answer is option D, as both the pulse oximeter and the stethoscope are used to determine blood pressure.