This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
In an ideal occlusion buccal cusps of maxillary teeth, occlude with: 
Select and explain. 
A. Fossa and ridges, B. Grooves and embrasures, C. Lingual cusps of mandibular teeth, D. Occlusal pits and fissures of mandibular teeth
B: Grooves and embrasures
Answer: B: Grooves and embrasures 
Explanation: None