compare many variables. display data as parts of a whole. track the relationship between two variables over time. organize data using pictures of objects.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: A line graph is best used to
Possibilities:
- compare many variables.
- display data as parts of a whole.
- track the relationship between two variables over time.
- organize data using pictures of objects.

track the relationship between two variables over time.