Answer:
C. Las reinas hablaban con las hadas.
Explanation:
The Imperfect tense for verbs ending in -ar is
yo -aba
tu -abas
el/ella/usted -aba
nosotros -ábamos
vosotros -abais
ellos/ellas/ustedes -aban
<u> </u>
The verb in this sentence is hablar, and the imperfect tense is Hablaban.
P.S. sorry for the incorrect answer in the beginning. I am also still learning this. :(
**This is the correct, edited answer**
