Respuesta :
A. wave because as the pulses are sent out the move in a wave.
Answer:
WAVE
Explanation:
As we know that pulse is a short disturbance which is produced in a given medium
When this short disturbance propagates in the medium continuously then it forms a continuous disturbance.
This is known as waves
So the wave is combination of pulse that travels in a given medium with periodic interval of time.
So here correct answer will be
WAVE