The Following MINITAB Output Presents a 95% Confidence Interval Find the Sample Size Needed So That the 99% Confidence

The following MINITAB output presents a 95% confidence interval.
$\begin{array}{crccc}\hline{\text { The assumed sigma }=8.0573} \\\text { Variable } & \mathrm{N} & \text { Mean } & \text { SE Mean } & 95 \% \mathrm{CI} \\\mathrm{x} & 52 & 53.563 & 1.1173 & (51.373,55.753) \\\hline\end{array}$
Find the sample size needed so that the 99% confidence interval will have a margin of error of
1.1.

A) 357
B) 291
C) 207
D) 15