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
A 12-year-old boy reported with a class II and div 1 malocclusion with proclined upper incisor and deep bite. Intraoral examination revealed a bilaterally symmetrical face, convex profile, potentially competent Lips with normal incisor display during rest and smile. Cephalometric finding showed that the patient had a horizontal growth direction with CVMI stage III, increased overjet and normal lower incisor inclination

What would be the appliance of choice for this patient 
Select and explain. 
A. Twin block, B. Activator, C. Bioator, D. Supermarionator
A: Twin block
Answer: A: Twin block 
Explanation: None