On which surfaces of the teeth is dental plaque most likely to accumulate in the mouth of a patient with poor oral hygiene?
(A)The palatal surfaces of the upper molars and lingual surfaces of the lower incisors. (B)The buccal surfaces of the upper molars and lingual surfaces of the lower incisors. (C)The palatal surfaces of the upper molars and labial surfaces of the lower incisors. (D)The buccal surfaces of the upper molars and labial surfaces of the lower incisors.
B