Answer:
They only had to blockade all of the sea ports to cut off supplies
Step-by-step explanation:
The easiest and most efficient way the British would have won the revolutionary war was to cut off supplies to the revolutionary army since the British rule controlled the seaports, they would have blocked supply from European countries that aided the revolutionaries.
with the lack of necessary supply to the revolutionaries they would have surrendered after a while to the British rule. this is because no hungry man can sustain a war and also wars are waged with weapons and if these two vital tools are absent then the war is lost already