The only reason Grasper survived was because he had never allowed his feelings for Ryuichi and Noriko to cross into love . NG survived because it was a business , and if it fell he would just build another . It was purely monetary in nature , no such feeling as love involved . He lay still and was almost asleep when he heard the door to his office squeak open . He looked over , not having the energy or desire to get up .

Question: What may be the reason for Grapser surviving ?
Answer: None of the above choices .He allowed his feelings with Noriko to cross into love .He was careful with his business relationships .He was careful with his relationships .