Molybdenum ground state electronic configuration

Which of the following is the correct orbital diagram for the ground-state electron configuration of molybdenum Explain what is wrong with each of the others. 

In addition to the above parameters, determined from the microwave data, the metal Fermi contact interaction constants in 97 MoN and 53 CrN were determined from the optical spectra [72] to be -508 and -179.8 MHz respectively. The element molybdenum belongs to the 4d transition metal row, which we will discuss further in due course. For the CrN molecule in its ground state, ab initio calculations [73] and molecular orbital considerations [74] suggest that the dominant electron configuration may be written... 

---