Your question is PySpark map vs flatMap. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
You're reviewing a simple PySpark transformation and want to be clear on when to return one output per input row versus multiple outputs.
Explain the difference between map and flatMap transformations in PySpark with concrete examples.