In the Parable of the Persistent Widow (Luke 18:1-8), what characteristic of God does Jesus emphasize through the unjust judge's eventual granting of the widow's request?

A God's reluctance to be bothered by human concerns. B God's eventual weariness of hearing the same requests. C God's willingness to answer persistent prayer, though He may seem slow. D God's obligation to grant justice to all who seek it.