atenderán
Atenderán is a Spanish verb conjugation. It is the third-person plural future indicative form of the verb "atender". "Atender" generally means to attend to, to assist, to pay attention to, or to serve. Therefore, "atenderán" translates to "they will attend to," "they will assist," "they will pay attention to," or "they will serve."
This form is used when referring to a group of people (they) who will perform the action