Concept:This question tests the teaching of James that the law is a single, inseparable standard of obedience.Explanation:James 2:10 declares that whoever keeps the whole law but fails at one point is guilty of breaking all of it.The law is not a list where each rule is judged separately; it is one complete standard from one Lawgiver.Therefore, a person cannot receive a lighter punishment just because they kept many commands and failed in only one.Any single failure makes the person a lawbreaker in the sight of God.So the one who fails at one law is counted fully guilty, not partially excused.Answer:C. guilty of all