Concept:A component bar chart divides a single bar into parts to show how a total is split into categories.Explanation:In the figure, each bar is divided into segments or components.Each segment represents a part of the whole total.The different segments are shaded or coloured differently.This makes it easy to compare both the total and the contribution of each part in one bar.This type of chart is known as a component bar chart.Answer:C. component bar chart