Question

which is the correct spanish translation of a light?
unos luces
una luz
un luz
unas luces

Explanation:

In Spanish, "a light" (singular) is translated as "una luz". "Luz" is a feminine - singular noun, so it takes the feminine singular article "una". "unos luces" and "unas luces" are plural forms, and "un luz" is grammatically incorrect as "luz" is feminine and "un" is masculine singular article.

Answer:

una luz