An electron moved from a lower energy lever to a higher energy lever, and then back down again. What most likely happened
a. first heat was absorbed from the lower level to the higher level, and then a photon was released when the electron moved back
down
b. first heat was released from the lower level to the higher level, and then a photon was released when the electron moved back
down
c. first a photon was released when the electron moved from the lower level to the higher level, and then a photon was absorbed
when the electron moved back down
d. first a photon was absorbed when the electron moved from the lower level to the higher level, and then a photon was released
when the electron moved back down