Abstraction and encapsulation are fundamental principles that underlie the object oriented approach to software development. What can you say about the following three statements?
I. Abstraction allows us to focus on what something does without considering the complexities of how it works.
II. Encapsulation allows us to consider complex ideas while ignoring irrelevant detail that would confuse us.
III. In encapsulation data member's data type can be changed without changing any other code.