You want to use tcpdump to retrieve packets with $113\mathrm{.}8\mathrm{.}81\mathrm{.}2$ as the source or destination IP address and port $8080$ as the source or destination port. Which command should you use?

sudo tcpdump $-$i eth$0-$vn host $113\mathrm{.}8\mathrm{.}81\mathrm{.}2$

sudo tcpdump $-$i eth$0-$vn host $113\mathrm{.}8\mathrm{.}81\mathrm{.}2$ and port $8080$ &

sudo tcpdump $-$i eth$0-$vn host $8\mathrm{.}8\mathrm{.}8\mathrm{.}8$ and port $8080$ &

sudo tcpdump $-$i $-$vn host $113\mathrm{.}8\mathrm{.}81\mathrm{.}2$ and port $8080$ &