Final answer:
The correct answer is 'd. Both a and b', which indicates that operator functions can be called using their associated symbol and in infix syntax, where the operator is placed between the operands.
Step-by-step explanation:
Operator functions can indeed be called using the symbol associated with them, but they can also be called using infix syntax. For example, in many programming languages, the addition operator '+' can be used in the form 'a + b', which is an infix notation where the operator is placed between the two operands. This contrasts with postfix or prefix notation, where the operator comes after or before the operands, respectively.
Operator functions can be called using both (infix/postfix) syntax, making the correct answer (d) Both a and b. The term "infix" refers to the conventional way of writing operators between their operands (e.g., A + B). Meanwhile, "postfix" or "suffix" notation involves placing the operator after the operands (e.g., A B +).
Some programming languages, particularly those that support function overloading and custom operator overloading, allow the use of symbolic notation, such as + or *, to call operator functions. This flexibility in syntax enables diverse programming paradigms and enhances code readability and expressiveness.
The correct answer to the question is d. Both a and b, meaning that operator functions can be called using the symbol (option a) and using infix syntax (option b).