The correct answer to this question is B, The Trinity - Father, Son & Holy Spirit. When one sees a shamrock, they may think of St. Patrick's Day. This day is a holiday in March, which celebrates the Irish and is a day for the Irish. However, its traditional meaning dates back to the Church.
Saint Patrick used the shamrock to illustrate the Holy Trinity. He did this during the 5th Century, while he was Christianising in Ireland. The evidence of this was found in 1675, where St. Patrick is shown holding a shamrock while preaching the crowd. It is thought that he was preaching about the Holy Trinity.
