In the Parable of the Friend at Midnight (Luke 11:5-8), what central attribute of God's character is Jesus emphasizing through the persistent friend's actions?

A God's unwillingness to be bothered by our constant requests. B God's desire to test our patience before answering our prayers. C God's generous and responsive nature to those who persistently seek Him in prayer. D God's favoritism towards those who are already close to Him.