Which of the following statements is TRUE about the situation: You are unable to work out the calculations for your lab report but you know what the correct answer should be. Since your report is due, you take one of your numbers from an old lab report so that you can arrive at the correct answer.
A.
This was such a tiny part of the lab report and it really doesn't matter.
B.
This is clearly plagiarism because you are copying someone's work without crediting the source.
C.
Your tutor doesn't expect everything to work out and if s/he knows that you falsified a few of your numbers to fit in with your results s/he won't be worried about it because the important thing is that you tried and that you understand what should have happened.