The correct option is B 91.2nmand121.5nm
For lyman series,
Maximum wavelength implies minimum transition energy which is for n2=2→n1=1,E=10.4eV.
Minimum wavelength implies maximum transition energy which is for n2=∞→n1=1,E=13.6eV.
Therefore,
λmax=hc/Emin=121nm,λmin=hc/Emax=91nm.