a) A relationship between classes that tells how they are related
b) A relationship between classes that tells how much power one class has over other class
c) A relationship between classes that tells which parts of a class is visible to other classes
d) All of the mentioned
Meghna MittalBegginer
d
Explanation: The Class relationship is a concept that helps us in differentiating how one class is related to other classes, the power of one over other and which part one class can be accessed by other class.