Which sentence has the correct sequence of tenses?A. Before it became a federal prison, Alcatraz Island serves as the site of a military prison.B. Before it becomes a federal prison, Alcatraz Island s

Which sentence has the correct sequence of tenses?A. Before it became a federal prison, Alcatraz Island serves as the site of a military prison.B. Before it becomes a federal prison, Alcatraz Island s

Which sentence has the correct sequence of tenses?A. Before it became a federal prison, Alcatraz Island serves as the site of a military prison.B. Before it becomes a federal prison, Alcatraz Island served as the site of a military prison.C. Before it became a federal prison, Alcatraz Island had served as the site of a military prison.D. Before it becomes a federal prison, Alcatraz Island was serving as the site of a military prison.