Which is the western-most state?

Alimitation on the president’s power to appoint ambassadors is that

Atraffic cop has pulled over a speeder, only to discover that he has stopped a close friend. the police officer is torn, because his professional obligations demand that he punish the speeder, but his personal obligations suggest that he should give a friend a break. what is this called?

On the map above, what is the name of the island to the west of letter b?