As data traverses a network, what address changes with each connection?
a: network b: transport c: physical d: mac address

(D) MAC address

Explanation:

  MAC address is the media access control address that basically used as identification number in the hardware. It is uniquely identified in the network for the every devices.

Whenever the packet moves from source to the destination the MAC address changes and updated with new destination and source MAC address. But it does not change its IP address during this process.

Therefore, MAC address basically change with the connection when there is data transverse in the network.

none because it's so obvious