II. Despite lingering questions about his Filipino citizenship and his one-year residence in the district, Gabriel filed his certificate of candidacy for congressman before the deadline set by law. His opponent, Vito, hires you as lawyer to contest Gabriel's candidacy. Before election day, what action or actions will you institute against Gabriel, and before which court, commission or tribunal will you file such action/s? Reasons. (2%) If, during the pendency of such action/s but before election day, Gabriel withdraws his certificate of candidacy, can he be substituted as candidate? If so, by whom and why? If not, why not? (2%) If the action/s instituted should be dismissed with finality before the election, and Gabriel assumes office after being proclaimed the winner in the election, can the issue of his candidacy and/or citizenship and residence still be questioned? If so, what action or actions may be filed and where? If not, why not? (2%)