Which two statements about conserve mode are true? (Choose two.)

Which two statements about conserve mode are true? (Choose two.)

A. FortiGate starts taking the configured action for new sessions requiring content inspection when the system memory reaches the configured red threshold. B. FortiGate starts dropping all new sessions when the system memory reaches the configured red threshold. C. FortiGate enters conserve mode when the system memory reaches the configured extreme threshold. D. FortiGate exits conserve mode when the system memory goes below the configured green threshold.