Question

this graph is a type of chart used to show information that changes over time. histogram pictograph bar graph line graph

Explanation:

The question describes a chart for showing information that changes over time. Among the options, a line graph uses points connected by lines to clearly display trends and changes over a time period, which matches the description. Histograms show frequency distributions, pictographs use symbols for counts, and bar graphs compare categories—none are primarily for tracking time-based changes.

Answer:

D. line graph