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According to class materials, which statement(s) about operator overloading is(are) true?
(a) new operators can never be created.
(b) certain overloaded operators can change the number of arguments they take.
(c) the precedence of an operator cannot be changed by overloading.
(d) overloading cannot change how an operator works on built-in types.
(e) the input operator > > and output operator < < can be overloaded through either member-functions or non-member functions.
(f) the assignment operator cannot be overloaded through a non-member function.
(g) none of (a) through (f) is a correct answer.

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According to class materials, which statement(s) about operator overloading is(are) true?
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