关于although与even if的选择

___there is enough food in the world for everybody, not everyone can afford to buy it.
这个题although与even if 同时出现在选项里了，应该选哪个，为什么?

even if和although用法的不同? although、even if和even though的用法 even if even though though 和although它们之间的区别 although、even if和even though有什么区别 even if 与even though even if ,as if,if only 与only if的区别?? 关于even if和 even though although though even though 的区别？ Even that 是让步状语从句？是不是即使的意思呀，为什么与用although而用even that ? 关于although的问题