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For the Paschen series, the value of \( \mathrm{n}_{1} \) and \( \mathrm{n}_{2} \) in the expression \( \Delta \mathrm{E}=\mathrm{R}_{\mathrm{M}} \times \mathrm{c}\left[\frac{1}{\mathrm{n}_{1}^{2}}-\frac{1}{\mathrm{n}_{2}^{2}}\right] \) is:
(a) \( \mathrm{n}_{1}=1, \mathrm{n}_{2}=2,3,4 \ldots \)
(b) \( \mathrm{n}_{1}=2, \mathrm{n}_{2}=3,4,5 \ldots \)
(c) \( \mathrm{n}_{1}=3, \mathrm{n}_{2}=4,5,6 \ldots \)
(d) \( \mathrm{n}_{1}=4, \mathrm{n}_{2}=5,6,7 \ldots \)
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