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computer science object oriented programming using cpp
1. Which is a good reason for passing a variable's address to a function?
(A): C++ requires that all variables used in a function be passed by address
(B): the called function can change the value of the variable in the calling function
(C): the function cannot change the value of the variable in the calling function
(D): the function needs to change multiple variable values
(E): the function will have a copy of the variable
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