Answer:
The correct answer is O potatoes.
During the 1840s, Ireland's great export was potatoes. This was a period known as the Irish Potato Famine, where a devastating potato blight caused widespread crop failures and led to a severe famine in Ireland. The Irish population heavily relied on potatoes as a staple food, and the failure of the crop resulted in mass starvation, disease, and emigration. The potato was not only a vital food source but also a major economic export for Ireland at the time. The loss of the potato crop had a profound impact on the Irish population, causing immense suffering and shaping the course of Irish history.
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