C
Quite to the contrary indeed. Grace enables us to stop sinning
Absolutely. If the Divine Nature of Christ, the Holy Spirit, truly inhabits the believer, then grace is very much alive and active in your life. Not only does change the way you think and feel toward situations and people but it also changes the way you feel and act in situations and toward people. If you have truly experienced Divine grace then you can't help but extend the grace in which you have been so graciously toward others.
If divine grace is truly at work in you and through you, then sin and selfishness have no power over you.
There is so much freedom to be experienced in a life fully surrendered!