You have configured a Classifier Access Control List(CLACL)with multiple match clauses.Each match clause has multiple defined fields within it.Which two statements describe how the router evaluates this CLACL?（）

A.All fields in each match clause must match.
B.All match clauses in the CLACL must match.
C.Only asingle field in each match clause must match.
D.Only asingle match clause in the CLACL must match