Select the best indicator from the given table for titration of \( 20 \mathrm{~mL} \) of \( 0.02...

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Select the best indicator from the given table for titration of \( 20 \mathrm{~mL} \) of \( 0.02 \mathrm{M} \mathrm{CH}_{3} \mathrm{COOH} \) with \( 0.02 \mathrm{M} \mathrm{NaOH} \). Given \( \mathrm{p} K_{a}\left(\mathrm{CH}_{3} \mathrm{COOH}\right)=4.74 \)
\begin{tabular}{r|c|c}
\hline & Indicator & pH range \\
(I) & Bromothymol blue & \( 6.0-7.6 \) \\
(II) & Thymolphthalein & \( 9.3-10.5 \) \\
(III) & Malachite green & \( 11.4-13 \) \\
(IV) & M-Cresol purple & \( 7.4-9.0 \) \\
\hline
\end{tabular}
(a) I
(b) II
(c) III
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