Pennsylvania was in Drydock.
Maryland and Tennessee were inboard two other battleships (Oklahoma and West Virginia).
California, Oklahoma, West Virginia, Arizona were sunk, or so badly damaged that they could not sortie.
That left Nevada. Being on the northern end of BB Row, she failed to attract as much attention from the Japanese... only 1-2 torpedo planes (1 hit forward) and one group of five horizontal bombers (all misses).
As I recall (would have to go to my microfilm to be sure), one boiler was lit, with another on stand-by, so she had a head start.