The turning point in favor of the British during the French and Indian war in 1759 was the defeat of the French at fort necessity. Thus the correct answer is B.
What are the causes of the French and Indian war?
Conflicting statements between Great Britain and France over land and rivers were the major cause of the French and Indian War. Britain and France's desire for supremacy over the Ohio River valley in North America resulted in the outbreak of war.
After William Pitt took responsibility for the military activities, the war started to transform. He believed that North America was crucial to England's supremacy in the world.
Pitt gave local American officials control of recruitment and logistics and promised to compensate them again.
Therefore, option B defeat of the French at fort necessity is appropriate.
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