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What is the correct answer?

4

Function Add(Num1 as integer, Num2 as integer) as integer
Add=Num1+Num2
Num1=0
Num2=0
End function
This body is an example of calling up a function by:

A. By optional argument.

B. By value.

C. By reference.

Correct Answer :

C. By reference.


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