Which of the Following Refers to the "Connector Model

Which of the following refers to the "connector model"?

A) a system that involves one set of colleges and universities for the poor and another for the rich
B) a quasi-governmental authority or agency that aims to pool individuals so that they can buy insurance together at a lower rate
C) a model that connects the benefits offered by federally funded medical health care programs, namely Medicare and Medicaid
D) a framework of roads, bridges, electrical facilities, telephone wiring, and so on needed for the operation of a society
E) an approach to homeland security that addresses natural disaster as well as terrorism preparedness