Can someone please explain how to get the answer for #$50?$Using the summary statistics, what is the margin of error of a $98\%$ confidence interval for the mean

difference in systolic blood pressure between the females and the males?

a$)36\mathrm{.}07$

b$)59\mathrm{.}02$

c$)38\mathrm{.}87$

d$)53\mathrm{.}28$