If the Standard Error of the Sampling Distribution of the Sample

If the standard error of the sampling distribution of the sample proportion is 0.0337 for samples of size 200, then the population proportion must be: $\begin{array}{|l|l|}\hline\text { A. } & 0.25 . \\\hline \text { B. } & 0.75 . \\\hline \text { C. } & \text { either } 0.20 \text { or } 0.80 \\\hline \text { D. } & \text { either } 0.35 \text { or } 0.65 \\\hline \text { E. } & \text { either } 0.30 \text { or } 0.70 \\\hline\end{array}$