According to the third paragraph, this “fundamental confusion” refer to the fact that ( ).

参考解析：

定位到第三段We must be careful to avoid mistaking preparation for a test of a skill with the acquisition of that skill. Too many discussions of basic of skills make this fundamental confusion because people are test-obsessed rather than concerned with the nature and quality of what is taught.可见，这句话的意思是，太多的关于基本技能的讨论促成了这种基本迷惑，因为人们太迷恋于考试，而不关注教学的本质和质量了。fundamental confusion前面有指示代词this，说明前面有所指，回到前一句话，我们必须小心避免把对于考试技能的准备当作学到了那种技能，这就是fundamental confusion，即为了考试技能而学习，直接等于学习了那种技能本身，B项符合文意。故本题正确答案选B。