I believe its the first one and the fourth one. i may be wrong tho :/
Answer:
I think d is the right answer
For people to stop littering the first step is.. (then add on what you think.)
Example: For people to stop littering the first step is to tell people how it effects our community and the wild life.
Example 2: The first step for people to stop littering is to show an example about what could happen to the world, it could cause diseases towards animals but also to people as well.
Hope this helps :)
Chars or Graphs are the most common. You could also use Venn diagram or pie chart.
