Pls translate and answer the following

According to the elements of style, which sentence is written in active voice?

Faça uma análise e depois aponte quais s? o as principais causas responsaveis pelo conflito no continente africano

A30 year old man comes to the emergency room complaining of severe abdominal pain most of his body is covered with tattoos and he has several body piercings he informs the staff that he does not have health insurance