he Trivial File Transfer Protocol $($RFC $1350)$ is an application layer protocol that uses the stop and wait protocol. To transfer a file from a server to a client, the server breaks the file into blocks of $512$ bytes and sends these blocks to the client using Stop$-$and$-$Wait ARQ. Find the efficiency in transmitting an $8$ Mbits file over a $10$ Mbps Ethernet LAN that has a diameter of $300$ meters. Assuming that the transmissions are error free and that each packet has $60$ bytes of header attached.

a$\mathrm{.}0\mathrm{.}498$ b$\mathrm{.}0\mathrm{.}298$ c$\mathrm{.}0\mathrm{.}458$ d$\mathrm{.}0\mathrm{.}595$ e$\mathrm{.}0\mathrm{.}398$