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One period $(0, T)$ each of two periodic waveforms $W_{1}$ and $W_{2}$ are shown in figure. The magnitudes of the $n$th Fourier series coefficients of $W_{1}$ and $W_{2}$. for $n \geq 1, n$ odd, are respectively proportional to

- $n^{-3} \mid$ and $n^{-2} \mid$
- $n^{-2} \mid$ and $n^{-3} \mid$
- $n^{-1}$ and $n^{-2} \mid$
- $n^{-4} \mid$ and $n^{-2} \mid$