A is correct: When you save prompts in Copilot Chat, giving each a clear, descriptive name makes it easy to find the right one among several saved prompts. Meaningful naming supports efficient reuse across distinct recurring workflows. Reference: https://learn.microsoft.com/en-us/copilot/microsoft-365/save-and-reuse-prompts
B is incorrect: Identical generic names make it harder, not easier, to distinguish between prompts. Descriptive, workflow-specific names are what let you quickly select the correct prompt. Reference: https://learn.microsoft.com/en-us/copilot/microsoft-365/save-and-reuse-prompts
C is incorrect: Copilot Chat does not limit you to one saved prompt. You can save multiple prompts, so the better practice is to keep them separate and name each one clearly. Reference: https://learn.microsoft.com/en-us/copilot/microsoft-365/save-and-reuse-prompts
D is incorrect: The name field is meant for a short, identifying label, not for sample output. A concise descriptive name is what makes a saved prompt easy to locate and reuse. Reference: https://learn.microsoft.com/en-us/copilot/microsoft-365/save-and-reuse-prompts