Modify or redirect a response

[Pippo]

Hello everybody. I'm not much of a computer expert so I ask you for immense help. I explain you: I am on a website where I have to answer questions by checking the True or False box. on fiddler I set the breakpoints before the response. then I analyze the response. if the response is correct (based on my choice), I deactivate the beakpointn and go ahead with the correct answer. if the response is wrong I would like to modify the response so that it is correct, or divert / redirect / destroy the wrong response so that the error is not reported to me and consequently I can modify my choice. I hope I explained myself