The peace agreement on Northern Ireland was approved by voters a

The peace agreement on Northern Ireland was approved by voters across all of Ireland in a referendum held in ______.
A、April 1997
B、May 1997
C、April 1998
D、May 1998
【正确答案】：C
【题目解析】：在1998年4月举行的全民公投中，北爱尔兰和平协议得到了爱尔兰全国选民的支持。