The battle of Bunker Hill occurred during the American Revolution against the British. A few battles occurred during this revolution but it wasn't until Bunker Hill that both parties understood the scale of this war.
Bunker Hill was located in a small kind of island in Boston. The Island had a heel which was Breeds Hill, Bunker Hill was located at the bottom of this heel. it is important to understand that the chances of winning are higher if you are on the upper land like Breeds Hill. That is why the British wanted that territory so badly.
The battle ended with the British success although, they had many casualties and their win was just because the Americans lack supplies for war. Therefore we can conclude that the correct answer is "Boston could easily be attacked from there".