A circle graph is most useful when displaying data that
a. compares two variables in one graph.
b. contains comparisons over time.
c. shows an average.
d. tells us about parts of a whole.

Respuesta :

A circle graph is most useful when displaying data that tells us about parts of a whole
 
hope this helps

bahaii
D. tells us about parts of a whole, because a circle graph has different topics or objects divided, a circle graph is also known as a pie chart.