6460. The ubiquity of God cannot be questioned.

✅ The correct answer is option C.
Greatness : the quality of being great; eminence or distinction.

Mystery : something that is difficult or impossible to understand or explain.

Omnipresence : the state of being widespread or constantly encountered.

Existence : the fact or state of living or having objective reality.

Ubiquity : the fact of appearing everywhere or of being very common.

Synonym of Ubiquity is Omnipresence