A client uses UDP to send data to a server $,$ The data are $16$ bytes Calculate the efficiency of transmission $($ratio of useful to total bytes $)$ at the data link layer $,$ Assume no options for the Ip header and use Ethernet at the data link layer$($ ratio of useful bytes to total bytes$)$

a$\mathrm{.}22\mathrm{.}2\%$ b$\mathrm{.}30\mathrm{.}5\%$ c$\mathrm{.}28\mathrm{.}6\%$ d$\mathrm{.}25\mathrm{.}7\%$