In the Parable of the Persistent Widow (Luke 18:1-8), what does the unjust judge's eventual granting of the widow's request reveal about God's nature, according to Jesus?

A God is like the unjust judge and only answers prayers out of annoyance. B God is indifferent to the suffering of the oppressed. C God is far more just and compassionate than even the most unrighteous human authority, and He will answer the cries of His people. D God only answers the prayers of those who are wealthy and influential.