Which operator has the lowest precedence?

The operator with the lowest precedence among the choices listed is the conditional operator, often represented by the "?:" symbols. This operator is used in expressions that evaluate a condition and return one of two values depending on whether the condition is true or false.

In the context of operator precedence, the conditional operator has a lower precedence than most arithmetic and assignment operators. For example, multiplication (*) and division (/) are performed before the conditional operator when evaluating expressions. Similarly, the assignment operator (+=) has higher precedence as well.

Consequently, when constructing expressions that include multiple operators, the conditional operator will be evaluated last, ensuring that the other calculations are completed first. This is critical for maintaining the correct order of operations, which can significantly affect the outcome of an expression in programming and engineering calculations. Understanding this precedence allows developers to write accurate and efficient code.