I don’t know which conjugation you wanted but here’s a chart
The answer would be A
Las montañas mean the mountains
El parque means the park
El gimnasio means the fitness center
El cine means the movie theater
Since el campo is the countryside or the field then you can eliminate C and D since those are in the city, you would then eliminate B since its a park. You would be left with A since the mountains can be found on the countryside.
Hope this helps! :3
Ex.:
Cantar
Ustedes cantan.
Regular ending is -an.
1.nosotros fuimos montar al caballo
2.vas ir al campo?
3. Los hermanos Ortega fueron a dar una caminata
4.yo se montar en bicicleta
5.uds van a viajar alas montañas
Mas alta que hope this helps