Lei el periodico esta manana. voy a escribirle una carta al para expresar mi opinion.
a) economia
b) gobierno
c) trabajador indocumentado
d) editor

D) editor

Explanation:

First of all, "al" is the contraction of "a el" which means the following substantive is a masculine word (so it is not A) economia).

On the other hand, "Leí el periodico" ("I read the paper") share lexical field with "editor" ("editor").

sancho,   considered as acting "natural? " dancing the macarena sobbing

c. its asking which of the words need an accent mark. its spelled biografía