An Argument for Focusing on Quality of Instruction in Order

An argument for focusing on quality of instruction in order to address problems with the nation's educational system is that:

A) it is nearly always human error when it comes to poor academic performance.
B) it is nearly impossible to get parents involved and so motivating teachers is the only option.
C) it is easier to blame teachers than it is to alleviate poverty on a grand scale.
D) local funding sources will only consider employment issues and not resources.