How does the parable of the Persistent Widow (Luke 18:1-8) challenge common assumptions about prayer and God's character, particularly in light of the delay in answered prayer?

A It suggests God is reluctant to answer prayers and needs to be worn down by persistence. B It implies that only those who are persistent in prayer will receive what they ask for. C It highlights God's justice and faithfulness in answering the cries of those who persevere, even when facing apparent indifference. D It teaches that prayer is primarily about demonstrating our devotion to God rather than seeking specific outcomes.