What does the IP Options Strip represent under the fw chain output?

What does the IP Options Strip represent under the fw chain output?

A.
IP Options Strip is not a valid fw chain output.

B.
IP Options Strip is only used when VPN is involved.

C.
The IP Options Strip removes the IP header of the packet prior to be passed to the other
kernel functions.

D.
The IP Options Strip copies the header details to forward the details for further IPS
inspections.