When configuring dead peer detection for remote-access VPN, what does the confidence level
parameter represent?

A.
It specifies the number of seconds the adaptive security appliance should allow a peer to idle
before beginning keepalive monitoring.

B.
It specifies the number of seconds to wait between IKE keepalive retries.

C.
The higher the number, the more reliable the link is.

D.
It is determined dynamically based on reliability, uptime, and load.