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 nutrients necessary for plaque growth are considered as: 
Select and explain. 
A. Environmental determinants, B. Ecological determinants, C. Epidemiological determinants, D. Nutritional determinants
B: Ecological determinants
Answer: B: Ecological determinants 
Explanation: Dental caries is an ecological disease in which diet, host and microbial flora interact with each other in a specific period of time in such a way which increases demineralization of the tooth structure with resultant caries formation.
Ecological determinants:
The ecosystem-based 'goods and services' that we get from nature are the ecological determinants of health. Among the most important of these are oxygen, water, food, nutrients, etc.