What are the maximum number of classifiers per policy group?（）

A. 1 is the default precedence.
B. A lower number is preferred.
C. A higher number is preferred.
D. 100 is the default precedence.

A. one-rate rate limiters
B. two-rate rate limiters
C. two-rate rate limiters is the default
D. one-rate rate limiters is the default
E. there is no default it must be configured