Literal question
4. The predominant material in the exterior walls is:
[] Finished cement block or brick
[] Unfinished cement block or brick
[] Concrete
[] Sawed wood, Formica, fiberglass and similar
[] Finished adobe, adobe or mud wall (tapia), bamboo-and-mud (bahareque)
[] Unfinished adobe, mud wall, bamboo-and-mud
Interviewer instructions
Question No.4
[Outer walls]
[The instructions refer to a graphic of section II, question 4 on the census form.]
-- Observe the material used most in the construction of the outer walls and fill in the corresponding cell.