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Multiple choice

What are the electric-dipole selection rules for transitions in hydrogen?

Delta-ell = 0, +/-1 and Delta-n = +/-1, with no restriction on Delta-m
Delta-ell = +/-1 and Delta-m = 0, +/-1, with no restriction on Delta-n
Delta-ell = +/-2 and Delta-m = +/-2, with Delta-n unrestricted
Delta-ell = 0 and Delta-m = 0, with Delta-n = +/-1 required