The correct option is Generate a Python function that returns the maximum number from a list input. This wording gives Copilot a clear task, the programming language, the behavior to implement, and the input type, which guides it to produce a focused and concise solution.

This prompt specifies Python, asks for a function, and defines both the input and the expected result. Copilot tends to produce the most accurate code when the request clearly states the goal and constraints, so this phrasing reduces ambiguity and encourages a minimal correct implementation that returns the largest element from the list.

Cloud Functions is unrelated to the task and does not describe a Python function or what it should return, so it would not guide Copilot to the needed code.

Compute the average of the numbers instructs Copilot to solve a different problem, since averaging is not the same as finding the maximum value.

Compare things in Python is vague and lacks details about language context, input type, and desired output, so it would likely yield generic or unfocused suggestions rather than a concise function that returns the largest number.

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