the answer is cosas because the sentence would be: I need to know what types of things i need to bring to travel to the Dominican Republic.
If you want to say "my friends love tamales" you would say "a mis amigos les encantan los tamales".
If you literally wanted to say "your friends love tamales" you could say "a tus amigos les encantan los tamales."
"Encantar" is to like a lot/ to enjoy a lot. "Encantar" can be a good translation for the use of "love" in liking something a lot.
It’s the last one: construir
