Which protocol on the host machine allows for a mapping of IP to MAC address?

A. MAC Address Resolution Protocol
B. Address Resolution Protocol
C. Reverse Address Resolution Protocol
D. Internet Control Message Protocol

B. Address Resolution Protocol (ARP) is used to map remote IPs on the current LAN to MAC addresses. It does this by broadcasting at layer 2 to all nodes for a response for the MAC address. Thus, it is a mapping of IP address to MAC address.