Response to Intervention Emerged from Multiple Studies in Which It

Multiple Choice

Response to intervention emerged from multiple studies in which it was concluded that nearly every student can learn if provided with all but one of the following.Which one is it?

A) Expert-driven instruction used in the general education classroom
B) Differentiated instruction of strategies used in the general education classroom
C) Specialized content area curriculum used in the general education classroom
D) Scientifically validated curriculum used in the general education classroom