what was one cause of the hundred years war?\no king edward iii claimed the french throne.\no king phillip…

Brief Explanations:

One of the causes of the Hundred - Years' War was that King Edward III of England claimed the French throne due to his maternal relationship to the French royal family. The other options are incorrect as King Phillip VI was a French king and did not claim the English throne, King Charles VII was a French king and did not claim the English throne, and King Henry V's claim came later in the context of the war but was not the initial cause.

Answer:

King Edward III claimed the French throne.