An Engineer Is Configuring Global Dial Plan Replication

An engineer is configuring Global Dial Plan Replication. On one cluster, she would like to prevent the local cluster from routing calls to a specific pattern learned via ILS. What should be configured within the local CUCM cluster to accomplish this?

A) Create a block transformation pattern
B) Create a block route pattern
C) Create a block translation pattern
D) Create a blocking rule under block learned numbers and patterns