Which statement is NOT true about Ireland ?

Which statement is NOT true about Ireland ?
A、Ireland is divided into two political units.
B、Northern Ireland is part of the United Kingdom.
C、The Republicof Ireland is an independent country.
D、Ireland is called the Emerald Isle because of its rich deposit of emeralds.
【正确答案】：D
【题目解析】：爱尔兰被称为翡翠岛是因为拥有许多绿色乡村，而不是盛产绿宝石。