The correct answer would be your choice A.
Because, "servidor" means: "a server" (referring to a person)
while "nariz" = "Nose," "chimenea" = "chimney," "arbol,"= "tree."
Hope that helps! :D
Por las creencias que vienen desde años atrás y estos eran a vistos como mala suerte
How many natural science classes is there?
"participaban" should be in the blank.