**In a multi-electron atom, which of the following orbitals described by the three quantum numbers will have the same energy in the absence of magnetic and electric fields ?I .n= 1,l= 0,m= 0II.n= 2,l= 0,m= 0III.n= 2,l= 1,m= 1IVn= 3,l= 2,m= 1V.n= 3,l= 2,m= 0** A) IV