Which of the Following Statements Regarding Exogenous and Endogenous Variables

Multiple Choice

Which of the following statements regarding exogenous and endogenous variables is correct?

A) The set of exogenous variables in any economic model should take into account the rich detail of the world and so should be limitless.
B) Endogenous variables will always be determined within the model.
C) Exogenous variables change as a result of changes in endogenous variables.
D) The only variables that are relevant to the market equilibrium are the endogenous variables, as they are determined within the model.