Which of the following is an invalid Cisco Secure Intrusion Detection System function?

Which of the following is an invalid Cisco Secure Intrusion Detection System function?

A.
Cisco Secure Intrusion Detection System sets off an alarm when certain user-configurable strings are matched.

B.
Cisco Secure Intrusion Detection System sends e-mail messages at particular alarm levels via eventd.

C.
Cisco Secure Intrusion Detection System performs a traceroute to the intruding system.

D.
Cisco Secure Intrusion Detection System sends a TCP reset to the intruder when operating in packet sniffing mode.