The throughput across the link becomes very low after installation of a new 802.11g point-to-point connection between two mansions. Given that the present configuration contains a wireless bridge on the roof with an omni-directional antennA. How to improve the link performance?

A.
Configure channel hopping on both wireless bridges.

B.
Replace the wireless bridges with wireless access points.

C.
Install bi-directional amplifiers at both sites.

D.
Replace theomni-directional antennas with Yagi antennas.