题目内容：

The advanced teaching method and the effect ____ brought about did a lot of good to our study.
A.what B.it C.that D.which
此处为什么选C

优质解答

应该选B.it代替The advanced teaching method .it brought about 做定语从句修饰the effect ,省略了关系代词that 或which.句子意思是:这种先进的教学方法以及它所带来的影响对我们的学习大有裨益.
记得加分啊.