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
S-ECC in a child 2, 3 or 4 years of age is characterized by: 
Select and explain. 
A. Early involvement of maxillary and mandibular molars & the mandibular canines, B. Mandibular incisors, maxillary & mandibular molar, C. Mandibular incisors & maxillary canine, D. Mandibular premolars & maxillary premolars
A: Early involvement of maxillary and mandibular molars & the mandibular canines
Answer: A: Early involvement of maxillary and mandibular molars & the mandibular canines 
Explanation: None