The Average Height of Male Adults for Five Time Points

Multiple Choice

The average height of male adults for five time points are shown for Scandinavian countries as a whole, and for Norway, Sweden, and Finland individually. The time points or years, 1950, 1960, 1970, 1980, 1990, are shown on the X-axis. The average height for each time point or year is shown on the Y-axis for each of the four groups: Scandinavia, Norway, Sweden, and, Finland. The data points for each group are connected by a line. What type of a chart is this?

A) line chart
B) trend chart
C) multigroup chart
D) multiple-line chart