the answer is A. Imperfecto progresivo.
The progressive imperfect is used to express something that was taking place in the past. It is formed using the verb to be in past (in this case: estaba) plus the verb ending in ing (ando, endo, in this case: cantando). It is mainly used for: on-going actions that were happening in the past.
Answer:
Filosofía
Explanation:
they are philosophers so that is likely to be the answer. But if u studied them in another specific class then put the name of that class
1. Roja
2. Azul
3. Negras
4. Verdes
5. Blanca
6. Gris
7. Morada
8. Rosado
9. Cafés
10. Anaranjado