This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Airway, Subject name: Anaesthesia
The Rendell-Baker-Soucek face mask is commonly used in this population? 
Select and explain. 
A. Pediatric, B. Geriatric, C. Pregnant, D. Bariatric
A: Pediatric
Answer: A: Pediatric 
Explanation: The use of a face mask can facilitate the delivery of oxygen or an anesthetic gas from a breathing system to a patient by creating an aiight seal with the patient's face. Some pediatric masks are specially designed to minimize apparatus dead space.