23. Which of the following traits can be used to distinguish permanent maxillary first molars from maxillary second molars? A. The maxillary first molars have roots that are less spread out. B. The maxillary first molars have furcation locations that are farther from the cervical line. C. Only the maxillary first molars are narrower (mesiodistally) on their lingual half than on their buccal half. D. Only the maxillary first molars have an oblique ridge. E. Only the maxillary first molars are likely to have five cusps.

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