Question

what is the plural form of \el estudiante serio\?
o el estudiantes serio
o el estudiante serios
o los estudiantes serios
o los estudiantes serio

Explanation:

In Spanish, the masculine singular article "el" changes to "los" for plural. The noun "estudiante" (student) and the adjective "serio" (serious) both take plural forms "estudiantes" and "serios" respectively.

Answer:

C. los estudiantes serios