Answer:
From the options listed, the correct answer would be ¿Los invitas tú?, however the sentence is missing the frequency adverb "Always", or "Siempre" in Spanish
Explanation:
¿Los invitas tú? is the correct option because it uses appropriately the Direct Object Pronoun "Los". A direct object pronoun is used to replace a direct object in a sentence, which is the one receiving the action. The Direct Object Pronouns are:
Subject Singular Plural
1st person Me<em>(me)</em> Nos <em>(us)</em>
2nd person Te <em>(informal you)</em> Os <em>(informal you)</em>
3rd person Lo, la <em>(it, him, her, formal you) </em>Los, las <em>(them, formal you)</em>
Since the object of the sentence is <em>"them", </em>we use the Direct Object Pronoun "Los"