Assume Device $1$ needs to discover the MAC address of Device $2.$ What information does Device

$1$ need to know to make this request? Note that this is not asking what Device $1$ will know after

the process is complete. It$$s asking what Device $1$ needs to know at the start of the discovery

process. Also note that there are multiple items that should be selected.

a$.$ Device $1$s IP address

b$.$ Device $1$s MAC address

c$.$ Device $2$s IP address

d$.$ Device $2$s MAC address