The capacitance of a capacitor is independent of which of the...

The capacitance of a capacitor depends only on its geometry (size, shape, and separation of the plates) and the dielectric medium between the plates.

For example, the capacitance of a parallel plate capacitor is given by $C = \dfrac{\epsilon_0 A}{d}$, where $A$ is the area of the plates and $d$ is the separation between them.

Although capacitance is defined as $C = \dfrac{Q}{V}$, it is a constant for a given capacitor and does not depend on the charge $Q$ on the plates or the potential difference $V$ across them.