Which Statement Below Regarding a Catalytic Converter Is FALSE

Which statement below regarding a catalytic converter is FALSE?

A) It is an example of a heterogeneous catalyst.
B) The decomposition of nitrogen oxides is catalyzed by small clusters of transition metal atoms.
C) The oxidation of CO is catalyzed by small clusters of transition metal atoms.
D) The reactions typically follow zero-order kinetics because the rate is often limited by the active surface area in the converter.
E) The reactions typically follow zero-order kinetics because amounts of exhaust gases present are always much lower than the capacity of the converter.