Your local ISP $($Internet Service Provider$)$ has provided you with a dedicated line that has a CIR $($Committed Information Rate$)$ of $1\mathrm{.}54$ Mbps$.$ What does this mean? a$.$ The dedicated line is using X$\mathrm{.}25.$ b$.1\mathrm{.}54$ Mbps is the highest amount of bandwidth the link can use.O c$.1\mathrm{.}54$ Mbps is the guaranteed minimum transmission rate. d$.1\mathrm{.}54$ Mbps is available for burst network traffic only.When using the ping command to solve a network connection problem, which one of these steps can you skip if the target host is on the same LAN $($Local Area Network$)?$ a$.$ Ping the default gateway. b$.$ Ping DNS $($Domain Name System$)$ servers. c$.$ Ping the $127\mathrm{.}0\mathrm{.}0\mathrm{.}1$ address. d$.$ Ping the host's IP address.