Do you still need help with this questions?
The conjugations of dormir in past tense are..
Yo - dormí
Tú - dormiste
Él/Ella/Ud. - dormió
Nosotros - dormimos
Ellos/Ellas/Uds. - dormieron
So the answer is A, dormimos.
Cuenta (tells the story), explica (explains), discute, -- Multiple verbs seem possible that can fit this spot.
