Structure of Atom Part 2

In a multielectron atom, which of the following orbitals described by three quantum numbers will have same energy in absence of electric and magnetic fields?
A. n=1,l=0,m1=0
B. n=2,l=0,m1=0
C. n=2,l=1,m1=1
D. n=3,l=2,m1=1
E. n=3,l=2,m1=0
Choose the correct answer from the options given below: