What was the main cause of the Hundred Years’ War?
A) the claim by English kings to the throne of France
B) disputes over fishing rights in the English Channel
C) the development of new and more effective weapons
D) religious conflict between French and English Catholics
Although the causes of the Hundred Years' War are vast and complex, the best option from the list would be "A) the claim by English kings to the throne of France", since succession issues were at the heart of the origins of the conflict.