I have only read the question and not yet the post so forgive me if by answering the question it seems off topic- I apologize for that. My answer to this Poll is that a Christian cannot use any answer as a valid conclusion. Except I'm not sure...and we all know where that leads. But the yes and no answer is impossible to conclude as a overall concept. If by grace we are saved, and Jesus freed us from sin, it is obvious we can be in Him and be seen sin- free thru Christ to God. However, we live by faith. Thus we cannot say that end of judgement before the act of living is concluded. We know the absolute completion of the availability to a sin -free life, we know that if we remain in Christ He will keep us there, but no one can guarantee what an individuals will will do. This is the issue that makes us not able to answer this Poll with the suggested answers. a guaranteed victory -"Yes" , a guaranteed power given to our will to accept or deny it, and a Satan that will fight God for our souls, yet still.
"....It's desire is for you, but you must rule over it." Gen. 4:7. "Therefore, if anyone is in Christ, he is a New Creation. The Old has passed away; behold the New has come." 2 Corinthians 5:17. If we remain in this we do indeed secure freedom of sin by obedience to the spirit, by way of Jesus on a cross, but the fight is still on to dislodge us from what is rightly now ours to have. Not a fight Satan has a chance to win if we remain in Christ, but only if we veer from that center in our lives via sin can he gain access back into domination over Gods more than conquering victory. Yet, it is still dependent on our obedience through our will, our will to remain in things already accomplished in Christ.
"Truly, truly, I say to you, everyone who commits sin is a slave to sin." John 8:34. "For if we go on sinning deliberately after receiving the knowledge of the truth, there no longer remains a sacrifice for sins." Hebrews 10:26. Or another way of putting it: If we allow sin to exist in our habits, the overwhelming power of Christ's victory on a cross over sin is null and void.
My official answer here must be: It depends on the measure of faith we live by. We are saved by grace through faith. The first is the miracle, but the second is the nitty-gritty truth of where the rubber meets the road in our walk of that miracle. In the actual truth of our acceptance of receiving Christ.