Concept:Al-Amin means “the trustworthy one,” so the attribute refers to honesty and trustworthiness.Explanation:Prophet Muhammad (SAW) was called Al-Amin by the people of Makkah because of his truthful and trustworthy character.This quality made people confident to leave their valuables with him and accept him as a fair leader.Therefore, the best response is that Al-Amin signifies honesty and trustworthiness.Answer:C. honesty and trustworthiness