Fluorescence Occurs When ____

Fluorescence occurs when ____.

A) a high-energy electron returns to its ground state by releasing energy in a photon
B) a low-energy electron moves to a high-energy state by absorbing heat
C) a high-energy electron leaves its nucleus and moves to a different molecule
D) a pigment molecule accepts a high-energy electron and releases a photon of energy
E) the energy from an electron is transferred to a different molecule while the electron returns to the ground state