The recipe call for exactly 4 cups of sugar. problem is that you have two buckets. one is 5 cups the other is 3 cups. using these buckets can you measute exactly 4 cups pf sugar? how?

Get a measuring cup and measure 4 cups out of the 5

Fill the 3 cup bucket
pour into 5 cup bucket
fill 3 cup bucket again
pour into 5 cup bucket until 5 cup bucket is full
now you have 1 cup in the 3 cup bucket
empty 5 cup bucket
pour the 1 cup from the 3 cup bucket into the  5 cup bucket
fill the 3 cup bucket
pour into the 5 cup bucket
done

You need to show the graph

Answer is either b or c