  A theory of quantum-mechanical generation of cosmological perturbations is
considered. The conclusion of this study is that if the large-angular-scale
anisotropy in the cosmic microwave background radiation is caused by the
long-wavelength cosmological perturbations of quantum mechanical origin, they
are, most likely, gravitational waves, rather than density perturbations or
rotational perturbations. Some disagreements with previous publications are
clarified. This contribution to the Proceedings is based on Reference~[34].
