The correct option is A 1.5 million
According to the record of the Hearth Tax Rolls, between 1815 and 1845, 1.5 million Irish emigrated, mainly to Britain (0.5 million) and to north America (1 million). Of those who went to north America, the majority settled in Canada. Between 1825 and 1830, 128,200 Irish emigrated to north America, 61% of which went to Canada and 39% to the USA. Hence, Option A is correct. The rest of the figures do not correspond to the official records, hence, incorrect.