$
\begin{array}{l}
{{a}{\mathrm{)}}{2}\mathrm{\frac{2}{4}}\mathrm{\in}{Q}\hspace{0.33em}\hspace{0.33em}\hspace{0.33em}\hspace{0.33em}\hspace{0.33em}\hspace{0.33em}\hspace{0.33em}\hspace{0.33em}{d}{\mathrm{)}}\mathrm{\sqrt{16}}\mathrm{{=}}{4}{I}}\\
{\hspace{0.33em}\hspace{0.33em}\hspace{0.33em}{b}{\mathrm{)}}{0}{\mathrm{,}}{1}{\mathrm{(}}{\mathrm{35}}{\mathrm{)}}{I}\hspace{0.33em}\hspace{0.33em}\hspace{0.33em}\hspace{0.33em}\hspace{0.33em}\hspace{0.33em}{e}{\mathrm{)}}\mathrm{{-}}{4}\mathrm{\in}{R}}\\
{\hspace{0.33em}\hspace{0.33em}\hspace{0.33em}{c}{\mathrm{)}}\mathrm{{-}}\mathrm{\sqrt{2}}\mathrm{\in}{I}\hspace{0.33em}\hspace{0.33em}\hspace{0.33em}\hspace{0.33em}\hspace{0.33em}\hspace{0.33em}{f}{\mathrm{)}}{I}\mathrm{\subset}{R}}
\end{array}
$
