Which of the following is a characteristic of a semantic error?

A semantic error occurs when the code is syntactically correct, meaning it follows the rules of the programming language, but it does not produce the intended result or functionality. In other words, while the code runs without any errors, it behaves in a way that is not correct as per the programmer's intentions. This can manifest itself in various ways, such as incorrect calculations, unexpected outputs, or incorrect flow of execution, leading to results that do not align with what the programmer thought would happen.

For instance, if a program is supposed to add two numbers but instead subtracts them due to a logical flaw in the code, this is a semantic error. The code compiles and runs, yet it does not fulfill its intended purpose, making option C the correct choice. Understanding semantic errors is crucial for debugging and ensuring that the program logic aligns with the desired outcomes.