Final answer:
The outcome of the British '3 Prong Attack' strategy during the American Revolutionary War was the failure to achieve their objectives and contributed to their defeat. The British initially captured major American cities but were unable to isolate New England. The American victory at the Battle of Saratoga and assistance from France turned the tide of the war in favor of the revolutionaries.
Step-by-step explanation:
The outcome of the British '3 Prong Attack' strategy during the American Revolutionary War was c. The British failed to achieve their objectives, and it ultimately contributed to their defeat.
The British initially succeeded in capturing major American cities such as New York City and Philadelphia, but their larger strategy of isolating New England and forcing the colonists into submission failed. The turning point came with the American victory at the Battle of Saratoga in 1777, which convinced France to recognize the United States and provide military support.
In the later years of the war, the British turned their attention to the southern colonies, where they initially had success. However, with the leadership of George Washington, General Nathanael Greene, and the assistance of French forces, the Continental Army defeated the British at the Battle of Yorktown, effectively ending any further large-scale operations.