There are 32 counties in Ireland prior to 1838. However, people most often consider Ireland to have only 28 modern counties nowadays. Aside from these counties, Ireland is divided into four provinces namely Connaught, Leinster, Munster and Ulster. For the purpose of answering the question using the given choices, here are the 32 counties in Ireland divided according to the respective province they belong to: Galways, Leitrim, Mayo, Roscommon and Sligo are part of Connaught province.
Carlow, Dublin, Kildare, Kilkenny, Laois, Longford, Louth, Meath, Offaly, Westmeath, Wexford and Wicklow are part of Leinster province. Clare, Cork, Kerry, Limerick, Tipperary and Waterford are part of Munster province. Cavan, Donegal, Monaghan, Antrim, Armagh, Down, Fermanagh, Londonderry and Tyrone are part of Ulster.