A. three
B. four
C. five
D. one
Explanation: The four layers are: Subsystem layer, class and object layer, message layer and responsibilities layer
Correct Answer: four ✔
Last Updated: February 04, 2019
A. three
B. four
C. five
D. one
Explanation: The four layers are: Subsystem layer, class and object layer, message layer and responsibilities layer
Correct Answer: four ✔
Last Updated: February 04, 2019