This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anaesthesia, Subject name: Pharmacology
Anesthetic equipment that can provide 100% oxygen is: 
Select and explain. 
A. Venturi mask, B. Oxygen mask, C. Nasal cannula, D. Face mask with reservoir
D: Face mask with reservoir
Answer: D: Face mask with reservoir 
Explanation: ANS. DOxygen delivery by:1. Nasal cannula: 24-44% FiO92. Simple face mask: 40-60% FiO93. Venturi mask: 24-40% FiO94. Nonrebreathing mask (with reservoir bag): 60-100% O2