They brought horses. It was easier for them to catch up with the buffalo and hunt instead of having to throw weapons from a far and run after the Buffalo.
The answer is, Battle of Fort McHenry
I believe that the two answers would be A and C.
By then, the damage was done. Although estimates vary, it is believed as many as 1 million Irish men, women and children perished during the Famine, and another 1 million emigrated from the island to escape poverty and starvation, with many landing in various cities throughout North America and Great Britain.
