Based on molecular orbital theory, identify the species with minimum O —O bond length

O2-2-KK'σ2s2σ2s*2σ2pz2π2px2π2py2π2px*2π2py*2O2--KK'σ2s2σ 2s*2σ2pz2π2py2π2py2π2px*2π2py*1O2 -KK'σ2s2σ2s*2σ2pz2π2px2π2py2π2px*1π2py*1O2+-KK'σ2s2σ2s*2σ2pz2π2px2π2py2π2px*1π2py*0Bond order in O2-2=10-82=1; O2-=10-72=1.5; O2=10-62=2; O2+=10-52=2.5;O — O bond length inO2-2>O2->O2>O2+