Which of the following settings will reduce packet overhead and overall latency in a standalonepoint-to-point bridge deployment？（）

A、enable concatenation on the non-root bridge only

B、enable concatenation on the root bridge only

C、enable concatenation on both the root bridge and non-root bridge

D、enable concatenation on the root bridge and set it as desirable on the non-root bridge

E、set concatenation as desirable on the root bridge and enable it on the non-root bridge