Which statement describes an ALG?

Which statement describes an ALG?

A.
An ALG intercepts and analyzes all traffic, allocates resources, and defines dynamic
policies to deny the traffic.

B.
An ALG intercepts and analyzes the specified traffic, allocates resources, and defines
dynamic policies to permit the traffic to pass.

C.
An ALG intercepts and analyzes the specified traffic, allocates resources, and defines
dynamic policies to deny the traffic.

D.
An ALG intercepts and analyzes all traffic, allocates resources, and defines dynamic
policies to permit the traffic to pass.