2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/50321We establish that in Quantum Chromodynamics (QCD) at zero temperature, SU_(L+R)(N_F) exhibits the vector mode conjectured by Georgi and SU_(L-R)(N_F)is realized in either the Nambu-Goldstone mode or else the axial-vector charge is also screened from view at infinity. The Wigner-Weyl mode is ruled out unless the beta function in QCD develops an infrared stable zero.Revtex file, 8 pages. Revised version of previous work reported in hep-ph/9912389High Energy Physics - Theorytext