The best type of chart to illustrate the daily water intake that you would be taking in the next three months would be (A) Line.
Line is most suitable because it will show the progression – be it the increase and decrease – of your water intake clearly, compared to using bar, which is more suitable if you would like to contrast your water intake with your soda intake, for example.
The answer is D, because it's called a back-up.
The app you shown in the picture is that app scracth?
B. Select the range of data. You have to highlight it first so it knows what you are going to convert into a table.