Concept on OOPs MCQ

#1

What is the answer of the question?
Q­6 What makes a class abstract?
A) The class must not have method definitions.
B) The class must have a constructor that takes no arguments.
C) The class must have a function definition equal to zero.
D) The class which cannot be instantiated as they are mainly for
inheritance.
Please explain the reason also.

#2

hello @Sakshi2004

if a class has atleast one pure virtual function then we call such class as absract function.
pure virtual function => a function with no definition.

#3

so why c is not the answer?

#4

c and d should be correct.
a) we cannot create instance of abstract class.
b) it has pure virtual function so atleast one function definition is 0

#5

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