When an object of one class is a data field within another class, they are related by ____.
A) extension
B) scope
C) composition
D) is-a

Question

Quizplus · Accepted Answer

When an object of one class is a data field within another class, they are related by composition, also known as "has-a" relationship. This means that the object of the first class is part of the state of the second class and if the second class instance is destroyed, the first class instance is destroyed as well. The other options listed are not applicable in this scenario: extension refers to inheritance, scope refers to the visibility of variables and methods, and is-a is also related to inheritance, meaning that the subclass is a type of the superclass.

When an Object of One Class Is a Data Field