Which is the correct order of increasing energy of the listed orbitals in the atom of titanium?

$(\mathrm{At}.\mathrm{no}. \mathrm{Z}=22 )$

Energy of electron in multi-electron system:
E α n ; (n+l) value is same.
E α (n+1); (n+l) value is different.
For single electron system,
E α n irrrespective of ‘l’ values.
 

Increasing order of energy: 3s < 3p < 4s < 3d