What happens if you edit a script during execution?

I have a general question, which might be a result of misunderstanding of how processes are handled in Linux. I am going to define a 'script' as a snippet of bash code saved to a text file with execute permissions enabled for the current user. I have a series of scripts that call each other in tandem called A, B, and C. Script A carries out a series of statements, then pauses, then executes script B, then pauses, then executes script C. The series of steps is like this: Run Script A: 1. Series of statements 2. Pause 3. Run Script B 4. Pause 5. Run Script C If I run script A until the first pause, then make edits in script B or C, those edits are reflected in the execution of the code when I allow it to resume Is there any way to edit Script A while it is still running? Or is editing impossible once execution begins?