A bank's estimate of next year profit $($as a percentage of assets$)$ is a normal distribution with mean and standard deviation of $2\%$ and $3\%,$ respectively. How much equity $($as a percentage of assets$)$ does the company need to be $95\%$ sure that it will have a positive equity at the end of the year?

a$.6\mathrm{.}93\%$

b$.2\mathrm{.}93\%$

c$.0\mathrm{.}29\%$