The raising and lowering operators are denoted as L+ and L-, respectively. The correct commutator relation between angular momentum (L) and its various components (Lx, Ly and Lz) is
1
[L2, L+] = [L2, L-] = \(\hbar \)Lz
2
[L2, L+] = [L2, L-] = \(\hbar \)Lx
3
[L2, L+] = [L2, L-] = \(\hbar \)Ly
4
[L2, L+] = [L2, L-] = 0