Tu because If you put Mi or mis son rojos it says my are red which dosen't really make sense. Since you put tu in front of son (plual) it would be they are red.
D) Las maletas is the answer
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
