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
The cuspal inclines of the maxillary buccal cusps and the mandibular lingual cusps should be grounded if they are in deflective occlusal contact in: 
Select and explain. 
A. Working position only, B. Balancing position only, C. Both working and balancing positions, D. Central position
A: Working position only
Answer: A: Working position only 
Explanation: None