Because it is a data graph containing 8 steps, so that we will learn the process of how it is McDonald, which allows students to learn information that has never known it before.
This is a chart with 8 steps so that we might know the process of McDonald's is. This will make students aware of the information that had never heard before.
Because a data graph with 8 steps. So that we can know the process of McDonald 's what it is. Which will make the students know the data never know before.