Three resistances each of \( 1 \mathrm{ohm} \), are joined in parallel. Three such combinations ...

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Three resistances each of \( 1 \mathrm{ohm} \), are joined in parallel. Three such combinations are put in series, then the resultant resistance will be [MP PMT 1994; Similar MP PMT 2012]
(a) \( 9 \mathrm{ohm} \)
(b) \( 3 \mathrm{ohm} \)
(c) \( 1 \mathrm{ohm} \)
(d) \( \frac{1}{3} \mathrm{ohm} \)
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