Classify each of the following statements as an architectural (A) or detailed (D) design speci?cation:

(a) The ?nd() operation must use a binary search algorithm.

(b) The program must separate the user interface code from the rest of the code.

(c) The client must complete processing in no more than one second and the server must complete processing in no more than half a second.

(d) The Register class must maintain clients in a hash table.

(e) All utilities in the graphics library must be thread-safe.

(f) All Car objects must register themselves with the Clock object, and the Clock object will notify the Car objects when a second has passed.

(g) All observers of the Clock class must implement the Clock User interface.