In an experimental setup, a certain diatomic molecule, XY, with a unique electronic transition, is subjected to a high-frequency laser pulse. This pulse is tuned to precisely match the energy difference between its ground and first excited electronic states. As a result of this pulse, the molecule undergoes a transition to a higher vibrational level within the same electronic state without electronic excitation. Considering the Franck-Condon principle and the molecular orbital theory, which of the following best explains this phenomenon? A. The laser pulse provides sufficient energy to overcome the vibrational quantum in the ground state, causing a transition to a higher vibrational level within the same electronic state. B. The energy of the laser pulse matches the gap between the vibrational levels in the excited electronic state, leading to resonance without electronic excitation. C. The laser pulse induces a virtual state transition, where the molecule momentarily reaches an excited electronic state and then rapidly falls back to a different vibrational level in the ground state. D. The photon energy from the laser pulse is exactly equal to the difference between the ground state and the first excited state of the molecule, allowing a direct electronic transition. Don't use chat gpt.