The answer is A. Root crops, including yams, sweet potatoes, and taro, became more common.
The root crops became more common, and practically the basic food source. This was due to the fact that the climate and soil on the Pacific islands were excellent for growing them, and of course for having a sustainable food source.
the answer is agriculture
It really depends on which war the question is referring to, but if it's referring to WWII the answer would be true.
