Y and Z Are User-Defined Objects and the += Operator

question 1

Multiple Choice

Y and z are user-defined objects and the += operator is an overloaded member function. The operator is overloaded such that y += z adds z and y, then stores the result in y. Which of the following expressions is always equivalent to y += z?

• A) y = y operator+= z
• B) y.operator+=(z)
• C) y = y + z
• D) y operator+=(y + z)

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