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.
<span>The education system is 100% subsidized by the government, meaning that Cuban students at all levels can attend school for free. The Cuban government has been investing a substantial part of its budget into education for many years.</span>