  We show that the quasielastic (QE) response calculated with the SuSAv2
(superscaling approach) model, that relies on the scaling phenomenon observed
in the analysis of (e,e') data and on the relativistic mean-field theory, is
very similar to that from a relativistic distorted wave impulse approximation
model when only the real part of the optical potentials is employed. The
coincidence between the results from these two completely independent
approaches, which satisfactorily agree with the inclusive data, reinforces the
reliability of the quasielastic predictions stemming from both models and sets
constraints for the QE response. We also study the low energy and momentum
transfer region of the inclusive response by confronting the results of the
relativistic mean-field model with those of the Hartree-Fock continuum
random-phase approximation model, which accounts for nuclear long-range
correlations. Finally, we present a comparison of our results with the recent
JLab (e,e') data for argon, titanium and carbon, finding good agreement with
the three data sets.
