1.The war was just over,so throughout the country clothing w

1.The war was just over,so throughout the country clothing was the _______1.The war was just over,sothroughout the country clothing was the ________ of greatest complaint,housingfollowed,and food was last.A.resource B.source C.cause D.problem并翻译此句话.参考资料中答案选B？为什么？