Final answer:
The subject of this question is Physics, and the correct answer is option c. From 40-350 gpm (160-1,400 L/min).
Step-by-step explanation:
The subject of this question is Physics as it relates to fluid mechanics and the concept of flow rates.
The correct answer is option c. From 40-350 gpm (160-1,400 L/min). This range represents the flows of hand line streams, with the unit of measurement being gallons per minute (gpm) and liters per minute (L/min).
For example, a flow rate of 40 gpm would discharge 160 liters per minute, while a flow rate of 350 gpm would discharge 1,400 liters per minute.