Final answer:
Mary shows the virtue of faith through her obedience to God and trust in His plan.
Step-by-step explanation:
One example of Mary's obedience to God is seen in the story of the Annunciation, where she willingly accepts the role of being the mother of Jesus, despite the uncertainties and challenges that may come with it. Another example is her faithfulness in following Jesus to the cross, standing by him even in his darkest moments. By demonstrating her unwavering trust and belief in God's plan, Mary displays the virtue of faith, emphasizing the importance of relying on God and living a life of devotion and obedience.