Question: The SERC Reliability Corporation was formed by the merger of four reliability entities, one of which has an executive office located in Birmingham and its headquarters in what city? 
Sentence (from "SERC Reliability Corporation"): The original SERC was formed January 14, 1970 by the functional merger of four smaller reliability entities: the CARVA Pool, Tennessee Valley Authority (TVA), Southern Company (SOCO) and the Florida Electric Power Coordinating Group (FEPCG).
Relevant evidence: Yes