Concept:Citizenship can be revoked for acts of disloyalty against the state.Explanation:A naturalised citizen enjoys the rights of a citizen but must remain loyal to the country.Treason means betraying one’s own country through acts such as aiding enemies or plotting against the government.Found guilty of treason, a naturalised citizen may be stripped of his or her citizenship as a legal penalty.Other offences like tax evasion, electoral violence, or loitering attract other punishments but do not automatically lead to loss of citizenship.Answer:A. treason