Please help on Spanish we are using direct object pronouns (Why do subjects have pronouns in Spanish?)

Subject Pronouns in Spanish, or los Pronombres Personales, are simply what we use to identify the subject of a verb – be it a person, place, or thing. These pronouns (also referred to as “personal pronouns”) tell us who or what is performing the action of a verb, without needing to repeat an aforementioned noun.

answer is a: las

explanation:

the reason for this answer is becouse it's a plural frase which talks more then one thing

hermano limpia el cuarto y dobla tu ropa.

hermano haz la tarea.

hermano come tus verduras.

hermano lee tu libro.

hermano lava el pero