Research into Producing a Universally Applicable Model of Expected Inflation

Research into producing a universally applicable model of expected inflation

A) is the next essential step in building our understanding of macroeconomics.
B) has been proceeding well over the recent past and should soon conclude successfully with a theory that covers almost every policy environment.
C) is a waste of time because no such globally applicable model exists; expectations and the basis of their formation change from one economic environment to another.
D) could be expected to apply only to particular nations with different parameters being used to identify different economies in different stages of development.
E) none of the above.