Which component is primarily responsible for providing visual indications related to the oxygen system?

The component that is primarily responsible for providing visual indications related to the oxygen system is the discharge indicator. This indicator specifically shows whether the oxygen system has been activated or if the oxygen supply has been discharged, which is critical information for crew awareness and safety during flight operations. When the oxygen system is used or in the event of a leak, the discharge indicator will provide a clear visual signal to the flight crew, alerting them to the status of the oxygen system.

On the other hand, the cabin pressure monitoring system is focused on monitoring cabin altitude and pressure levels, rather than specifically indicating the status of the oxygen system. The visual alarm system is generally responsible for alerting the crew to various abnormalities or warnings throughout the aircraft but does not directly indicate the oxygen status. The electronic status display may show multiple systems and parameters but does so in a more generalized manner rather than specifically focusing on the oxygen system's status. Therefore, it is the discharge indicator that plays the crucial role in conveying information specific to the oxygen system.