Question

1. most oscilloscopes directly measure waveform shape,

a voltage, resistance, and current
b time, resistance, and phase
c time, voltage, and power
d voltage and time

Explanation:

Oscilloscopes are electronic test - measurement instruments. They display a graph of an electrical signal as a function of time, and they directly measure the voltage of the signal over time to show the waveform shape. They do not directly measure resistance, power, or phase.

Answer:

D. voltage and time