Seranthony Domínguez, Ryan O’Hearn and Cionel Pérez are staying in Baltimore.The Orioles have exercised their team options for Domínguez, O’Hearn and Pérez ahead of Monday’s deadline, the team announced. In a surprising move, Danny Coulombe’s team option ($4 million) wasn’t exercised. Club options for Domínguez and O’Hearn are for $8 million, while the Orioles and…