$34\mathrm{.}35\mathrm{.}36.$Lewis has been hired as an assistant to the head network administrator. He needs to under features that will block BPDUs $($Bridge Protocol Data Units$)$ on any port serving network ha$.$ A BPDU guard$37.$ Not Answered A root bridge$38\mathrm{.}39\mathrm{.}40\mathrm{.}4142\mathrm{.}43\mathrm{.}44\mathrm{.}45\mathrm{.}46\mathrm{.}47.$c$.$ A root guardd. A BPDU filter