Which of the following is NOT a logical operator?

The correct choice indicates that the XOR operator is not considered a traditional logical operator in the context of boolean logic used in programming languages. The other operators—AND, OR, and NOT—are foundational logical operators that operate on boolean values (true and false) to perform standard logical operations.

The AND operator requires both conditions to be true for the result to be true. The OR operator returns true if at least one of the conditions is true, while the NOT operator inverts the truth value of a single condition. These three operators are instrumental in constructing complex logical conditions in programming and decision-making processes.

On the other hand, the XOR (exclusive OR) operator, while it does produce a true or false result, operates differently. It returns true only when exactly one of its operands is true, which makes it an operator that can be considered logical, but not standard in all contexts of logical operations. Therefore, it is distinguishingly categorized as a separate type of operator, often used in programming scenarios where exclusivity is needed.