Answer:
The correct answer is the first statement.
Step-by-step explanation:
A diagnostic method utilized in hospitals, which utilizes ultrasound to produce 2-dimensional or 3-dimensional images is known as sonography. A small apparatus very identical to a microphone known as a transducer discharges ultrasound waves. These high-frequency sound waves are conducted towards the region of the body under examination, and one receives echo. The transducer gathers the echo of the sound waves and a computer transforms this echo into an image, which one observes on the monitor.