Answer:
The American forces learned that the British were planning on taking over the hills around Boston in order to gain a tactical advantage. As a result of this information, the Americans secretly moved their troops onto Bunker and Breed's Hill, two unoccupied hills just outside of Boston in Charlestown, Massachusetts.
The British change the strategy at the beginning of the revolutionary war because British casualties during the battle of bunker hill were very high.
Major General William Howe (1729-1814) and Brigadier General Robert Pigot (1720-96) led a force of 2,200 British troops to the Charlestown Peninsula on June 17 and marched to Breed's Hill. As the British Army moved in columns against the Americans, Prescott reportedly instructed his men, "Don't fire until you see the whites of their eyes!" in an effort to conserve the Americans' limited ammunition supply. When the Americans got within a few dozen yards of the Redcoats, they opened fire with a lethal torrent of musket fire, forcing the British to flee.
The British attacked again after re-forming their lines, with a same outcome. Prescott's troops were running out of ammo, so the Redcoats marched up the hill a third time, reaching the redoubts and fighting the Americans hand-to-hand. The Americans were compelled to retreat due to their numerical disadvantage. However, by the end of the battle, the Battle of Bunker Hill had claimed a large number of lives: Patriot firepower had killed over 1,000 enemy forces, with more than 200 killed and over 800 wounded. More than 100 Americans were killed, and more than 300 were injured.
Therefore, Option(B) is correct answer.
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