I don't fully understand your question, however if referring to spaniah class, or math class it is clase de español, and clase de mathematicas
Bolsa means bag. Esconder means hide.
Answer:
C) Tan
Explanation:
It makes sense, tiene sentido. The other ones just don't fit in the sentence, they make it soind weird.
1. Medio Ambiente
2.Reciclar
3.Aluminio
4.Recicle
5.Estés