Hold the orange in your hand and pull the stem out. Now look at where you just removed the stem. There will be a circle of dots that branch out or protrude from the circle. Count the number of dots. One dot equals one orange segment. Are there any dots that are not fully formed? Check to see if they stuck to the stem when you removed it. If so, these are the underdeveloped segments. How many dots did you count? Now you have your answer!