In case of operator overloading, operator function must be ______ .
1. Static member functions
2. Non- static member functions
3. Friend Functions
a. Only 2
b. Only 1, 3
c. Only 2 , 3
d. All 1 , 2, 3
ANSWER: Only 2 , 3
1. Static member functions
2. Non- static member functions
3. Friend Functions
a. Only 2
b. Only 1, 3
c. Only 2 , 3
d. All 1 , 2, 3
ANSWER: Only 2 , 3
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