The Posterior Superior Alveolar Nerve Block Provides Anesthesia for Which

The posterior superior alveolar nerve block provides anesthesia for which of the following?

A) The maxillary first,second,and third molars; including the mesial buccal root of the first molar
B) The maxillary first,second,and third molars; excluding the mesial buccal root of the first molar
C) The mandibular first,second,and third molars; including the mesial buccal root of the first molar
D) The mandibular first,second,and third molars; excluding the mesial buccal root of the first molar