A(n) of an class is where the services or behaviors of the class is defined. (points : 6) operation
attribute
class
object
abstract class

Operation the correct answer for the given question.

Explanation:

An operation is a template that is used as a template parameter .An operation defined the services and behaviors of the class .The operation is directly invoked on instance .

Attribute define the property of an entity it is not defined the services and behaviors of the class. so this option is incorrect.

Class is the class of variable of method it is not defined the services and behaviors of the class  so this option is incorrect.

Object are the rub time entity .object are used access the property of a class it is not defined the services and behaviors of the class  so this option is incorrect.

Abstract class is the class which have not full implementation of all the method .it is not defined the services and behaviors of the class  so this option is incorrect.

So the correct answer is operation.