If anyone wants information from two systems, he must get the information:
A. From each system and correlate
B. From one system at a time for correlation
C. From two systems and need not correlate
D. From a many systems as possible and correlate
Answer:A
If anyone wants information from two systems, he must get the information:
A. From each system and correlate B. From one system at a time for correlation C. From two systems and need not correlate D. From a many systems as possible and correlate