Correct option is C
In May 2018, Ireland held a historic referendum in which voters overwhelmingly chose to repeal the Eighth Amendment of the Irish Constitution. This amendment had effectively banned abortions in almost all cases, making Ireland's abortion laws some of the strictest in Europe. The referendum led to the legalization of abortion, allowing women more freedom and flexibility in choosing to terminate pregnancies. The decision was seen as a major milestone in Ireland’s journey towards liberalizing its laws on women’s rights.
Option (c) is correct: Ireland held the referendum in 2018 to make abortion laws more flexible.