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Which is a good reason for passing a variable's address to a function? | |
A. | the function will have a copy of the variable [Wrong Answer] |
B. | the function cannot change the value of the variable in the calling function [Wrong Answer] |
C. | C++ requires that all variables used in a function be passed by address [Wrong Answer] |
D. | the called function can change the value of the variable in the calling function [Correct Answer] |