Many people believe that all citizens benefit when a society's literacy rate is high through a stronger economy, more informed democratic participation, etc. This belief is used as an argument for government funding K-12 education, even though all citizens do not have children that will attend school. Which market failure do holders of this belief think exists in K-12 shootings?

A. Externality- Positive

B. Natural Monopoly

C. Externality- Negative

D. Asymmetric information