We are asked to construct an energy level diagram (molecular orbital) for the molecule SO. We are then asked to comment on the ionic species of SO - bond order, bond distance etc. So far so good.
Then we are asked the bond order of SO^4+ (assuming that it is formed).
I have laboriously drawn out the whole thing (not attached) and the bond order appears to be 3.
This is on the presumption that total electrons would be 20 (16 for S and 4 for O^4+).
This ion would not be paramagnetic.