Why practical integrator is called as lossy integrator?

Why practical integrator is called as lossy integrator? Correct Answer None of the mentioned

To avoid saturation problems, the feedback capacitor is shunted by a feedback resistance(RF). The parallel combination of RF and CF behave like a practical capacitor which dissipates power. For this reason, practical integrator is called as a lossy integrator.

Related Questions

Why a resistor is shunted across the feedback capacitor in the practical integrator?
A lossy line that has a linear phase factor as a function of frequency is called: