It is D, sharing appreciation for what is being said. Both A and B aren't crucial to being a good listener, in fact in practice they effectively draw attention to yourself, which would be fine if the question was regarding being a good conversationalist. Additionally, C is just completely irrelevant, that wouldn't even be a good conversation practice, let alone a trait important to listening.
Answer:
-el platar arboles nos ayuda a tener un ambiente mas fresco y agradable
-no dejar el grifo de agua abierto
-evitar quemar basura u otros objetos dañidos para el medio ambiente
-realizar limpieza en tu comunidad
Explanation:
solo se me ocurrio eso
espero que te sirva ^^