Which option verifies the availability of the seed list in IBM Tivoli Network Manager IP Edition V3.9?

A.
in DiscoConfig.cfg set m_Ping Verification=1 under disco.config

B.
in DiscoSchema.cfg set m_PingVerification=1 under disco.config

C.
in DiscoConfig.cfg set m_CheckFileFinderReturns=1 under disco.config

D.
in DiscoSchema.cfg set m_CheckFileFinderReturns=1 under disco.config