Final answer:
Model D is based on Bohr's quantum model, with a central sphere representing the nucleus and concentric circles representing the electron energy levels.
Step-by-step explanation:
The model based on Bohr's quantum model is labeled Model D. In this model, there is a central sphere (representing the nucleus) surrounded by three concentric circles (representing electron energy levels). Each concentric circle has spheres on it, representing the electrons in specific orbitals. This model accurately represents the concept of quantized energy levels and the existence of specific electron orbits proposed by Bohr.