_ children should be taught to deal with money intelligently has been widely accepted amongparents.(whether;that;what;as)

选择That
词题目考查that加陈述语序句子充当主语的用法。
本题中，谓语部分为has been accepted,缺少主语。而在主语中不缺少任何成分，固只需要加上引导词that，that起引导主语从句作用时，是不能省略的。

that

填 That,引导主语从句 children should be taught to deal with money intelligently,
谓语：has been widely accepted
父母亲们一致认同应该教育孩子们合理地处理钱财

填That.意思是应该教育孩子们明智的处理金钱这个观点已经在家长中广泛的接受了。