Final answer:
Hand tracing is a process where programmers step through code statements one by one to understand its flow and find errors.
Step-by-step explanation:
The process where the programmer steps through each of the program's statements one by one is called hand tracing. This is a manual process used by programmers to understand the flow of their code and to detect any errors or issues. It differs from executing or running the code, which involves the computer processing the code. During hand tracing, the programmer may simulate the code's behavior on paper or by mentally following the logic, ensuring that each line behaves as expected and helps in the debugging process.