What is the correct interpretation of the slope of the line in this graph?

A.
Every hour, the number of liters decreases by 0.5 liter.

B.
It takes 0.25 hour for the water to decrease by one liter.

C.
Every hour, the number of liters decreases by 0.25 liter.

D.
It takes 0.5 hour for the water to decrease by one liter.

Question

What is the correct interpretation of the slope of the line in this graph?
  

 
 A.
Every hour, the number of liters decreases by 0.5 liter.
 
 B.
It takes 0.25 hour for the water to decrease by one liter.
 
 C.
Every hour, the number of liters decreases by 0.25 liter.
 
 D.
It takes 0.5 hour for the water to decrease by one liter.

anonymous · Answer

attachment

anonymous · Answer

the volume of water changes 0.5Liters in 2hours 
or
0.5liter/2hr

anonymous · Answer

how can this be simpified to fit one of your choices