Which configuration option causes an ASA with IPS module to drop traffic matching IPS signatures and to block all traffic if the module fails?

Which configuration option causes an ASA with IPS module to drop traffic matching IPS signatures and
to block all traffic if the module fails?

A.
Inline Mode, Permit Traffic

B.
Inline Mode, Close Traffic

C.
Promiscuous Mode, Permit Traffic

D.
Promiscuous Mode, Close Traffic