Which of the Following Is a Criticism Leveled Against VAR

Multiple Choice

Which of the following is a criticism leveled against VAR models?

A) VAR models are based on classical rather than Keynesian economic theory.
B) Var models are not based on data.
C) VAR models are unable to isolate the effects of policy variables because those variables are not exogenous.
D) VAR models isolate the effects of policy variables because those variables are exogenous variables.