Why Do High-Quality Capacitors Have Polyethylene,polycarbonate,or Teflon Dielectrics

Multiple Choice

Why do high-quality capacitors have polyethylene,polycarbonate,or Teflon dielectrics?

A) They minimize voltage variations resulting from capacitor characteristics.
B) They limit the maximum input frequency that the S/H circuit can accurately process.
C) They convert quantized waveforms into stepped analog signals.
D) They isolate the input signal from the S/H circuit and provide proper impedance matching.