The best answer is: FRÍO. "Si estás al aire libre en el parque Los Glaciares, probablemente tienes frío."
I hope I helped you :)
The Parque los Glaciares (Los Glaciares National Park), is located in the southern Andes of southwestern Argentina, near the Chilean border. It is famous for having numerous glaciers.
Therefore if you are in such a cold place you must be cold (frío) , and the complete sentence is:
If you're outdoors in Los Glaciares National Park, you're probably cold
The options calor (hot), sueño (sleepy) and razón (to be right) are incorrect because they do not fit in the context of the sentence.
