Even in the Absence of Intervention by Governments,people Make Many

Even in the absence of intervention by governments,people make many choices that contribute to development.Which of the following examples will not contribute to development?

A) Household save and invest to build a better future for their children
B) Households specialize and engage in mutually beneficial trade
C) Public good problems give way to free riders in infrastructure projects
D) Households use financial markets to cope with risk and vulnerability