Final answer:
A patient utilizing a BVM with O2 flowing at 10-15 liters/min would receive 90-100% oxygen concentration, ensuring adequate tissue oxygenation.
Step-by-step explanation:
When a patient receives oxygen from a Bag-Valve-Mask (BVM) with O2 flowing at 10-15 liters/min, they are receiving a high concentration of oxygen. Specifically, the patient would receive 90-100% oxygen, which corresponds to option (d) in your question.
It is essential to deliver a high-flow of oxygen in emergency situations to ensure that the patient's tissues receive enough oxygen to function properly, especially when the patient might not be breathing effectively on their own.