Cindy filed her original $2021$ return on February $172022.$ The original filing deadline was April $18,2022.$ Cindy wishes to file an amended return. What is her deadline for filing a $2021$ amended return?

A$)$ February $17,2025$

B$)$ April $18,2025$

C$)$ July $15,2025$

D$)$ October $15,2025$