Line Graphs helps to identify trends.
Option C
Step-by-step explanation:
Line graph usually a line is used to link the data points that we plotted. These type of graphs are used in showing trends and to recognize the two variables whether they relate or not. To show how the point is going a trend line is marked. Generally, it is seen that trends occur for a small period of time and then change so for this, line graphs are preferred.
When parts of a whole are to be compared then the pie charts are used. Earliest used graphs are pictogram that uses a picture or icon to deliver the information or meaning. For representing the categorical data, a bar graph is used when bars are drawn in the vertical form it is referred to as a column chart. All these charts are used in data interpretation and make the calculation easier.