Filling of Water in Identical Containers Over Time

Water was poured into \(3\) identical containers \(A\), \(B\) and \(C\) till they were completely filled.

Container \(A\) was empty and water was poured in at a fixed rate.

Container \(B\) already had some water in it and water was poured in at a fixed rate.

Container \(C\) was empty and water was poured in at a fixed rate after a certain amount of time.

1. Which graph above best represents the filling of water over time for
   1. container \(A\), and
   2. container \(B\)?
2. What was the capacity of each container?
3. In which container was water poured in at the slowest rate, and what was this rate?
4. Which container took the shortest time to be completely filled, and what is this time?