C++ MQCs with Explanation (CHAPTER 5: CLASSES AND OBJECTS

Which one of the following is TRUE while passing objects as function arguments?

1. A copy of the entire objects can be passed
2. Only the address of the object can be passed
3. A nonmember function can use objects as its arguments
4. All of the above.

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Answer: 

Option d: All of the above.

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Explanation Here