How can you check the signal strength (RSSI) and transmit rate of a Wi-Fi network your computer is connected to?
A. Option-click the Wi-Fi menu item, it will be listed below the network name.
B. In Network Utility, click the Wireless Performance tab.
C. In Network preferences, secondary-click the Wi-Fi network service and choose Connection Status.
D. In Network Diagnostics, click the Interface Status tab and choose Wi-Fi from the interface pop-up menu.