Final answer:
Mercédès shows courage and compassion, making her seem heroic.
Step-by-step explanation:
Based on the information provided, it is difficult to determine if Mercédès can be considered heroic after the Count's duel with Albert is canceled. However, option c) 'Yes, because she showed courage and compassion' seems to be the most fitting choice given her actions and beliefs.
In the passage, Mercédès expresses her support for war and the liberation of oppressed people, showing her courage to stand up for what she believes in. While she may not have taken a direct stand in the specific situation mentioned, her overall character and values suggest that she possesses heroic qualities.