Which of the Following Ideas Do Friedman and Hechter Consider

Which of the following ideas do Friedman and Hechter consider basic to rational choice theory? Select all, but only those that apply.

A) Actors must consider the scarcity of resources.
B) Actors must consider the feasibility of actions as prescribed or prohibited by norms, laws, agendas, and voting rules.
C) A consideration of the cumulative social effects of individual actors should be considered.
D) A consideration of available information (or lack thereof) should be considered.