If \( I_{1}=\int_{x}^{1} \frac{d t}{1+t^{2}} \) and \( I_{2}=\int_{1}^{1 / x} \frac{d t}{1+t^{2}...

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If \( I_{1}=\int_{x}^{1} \frac{d t}{1+t^{2}} \) and \( I_{2}=\int_{1}^{1 / x} \frac{d t}{1+t^{2}} \) for \( x0 \), then
(a) \( I_{1}=I_{2} \)
(b) \( I_{1}I_{2} \)
(c) \( I_{2}I_{1} \)
(d) \( I_{2}=(\pi / 2)-\tan ^{-1} x \)
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