This story makes no sense... Could I get a summary of what the story is supposed to be about? I mean, you could also use Google Translate...
I do not believe you can change the form of this in Spanish but to make it feminine you need to change the noun in the rest of the sentence.
1. México and Argentina = c. El peso
2. Guatemala = e. El quetzal
3. Panamá = b. Dólar estadunidense
4. España = a. El euro
5. Venezuela = d. El Bolívar