An electron is on a -2.5 eV energy level. The electron is struck by a 2.5 eV photon. What will most likely happen?
A. The electron will be removed from the atom.
B. The electron will move to the sixth energy level and release a 0.1 eV photon.
C. The electron will remain in the same energy level.
D. The electron will move down to the lowest energy level, releasing a 2.5 eV photon in the process.