I have been told to find the volume of 4 containers then the worksheet asked. "Now that you have completed your research, which container would you recommend using for each portion size that a customer might buy? Why is this size the best choice" I am confused by this problem and I need help from someone to break it down for me.

maybe the best choice is the one with the smallest total area -- that is, it uses the least material to make.

Or maybe the portion size is such that only one of the containers is a reasonable choice for that amount.