123- In the figure below, the two shaded areas are equal, $C$ is which of the following?
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\textit{[Figure: Graph showing $y = \sqrt{x}$ with shaded region between $x = C$ and $x = 4$]}
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(1) $\dfrac{4}{3}$ \hfill (2) $\dfrac{16}{9}$ \hfill (3) $2$ \hfill (4) $\dfrac{9}{4}$
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\textbf{Scratch Work Area}
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