What they are really asking
The interviewer has seen your transcript, or they're guessing there's a low grade somewhere, and they want to know if it matters. In other words: how will the class you did worst in show up in this job? Under that is a simpler question. When you do badly at something, do you learn from it, or do you hide it?
Nobody expects a perfect record. What worries them is a candidate who gets defensive, blames the course, or says it won't affect anything without explaining why. What reassures them is a calm answer with a lesson in it.
A shape that works
Own it, explain it, show the change. Name the class and the grade without drama. Give the real reason in one sentence: you took too many courses that term, you didn't ask for help, the subject didn't come naturally. Then say what you do differently now, with one example from later study or work. Finish by answering the question directly: it affects the job in the sense that you learned this habit.
Model answers
Listen to how each answer is built, then make it yours.
Check yourself
Practice · 3 min
Think of your weakest class. Write one sentence on the grade and reason, two on what you changed, and one that answers the question directly. Record it. Listen for any word that blames someone else, like "unfair" or "the professor," and take it out.
Your recording stays on this device. Nothing is uploaded.
Say it today
Use it once in a real conversation before tomorrow. Out loud counts, even to yourself.