No entiendo lo que quieres decir
The answer is usan because it is talking about how they talk to their friends. They USE slang.
Los árboles están al lado del río.
(I believe that means, The trees are next to the river.)
Answer:
C) Tan
Explanation:
It makes sense, tiene sentido. The other ones just don't fit in the sentence, they make it soind weird.
