Improved drinking water sources are defined as drinking water sources that are protected from outside contamination. According to the World Health Organization, 663 million people around the world lack access to sources of improved drinking water, which puts them at high risk for infection and illness. The bar chart below shows the number of people in each region that are estimated by the World Health Organization to lack access to improved drinking water sources. Number of People Without Access to Improved Drinking Water Sources Region Other South-eastern Asia Eastern Asia Southern Asia 100 Sub-saharan Africa 50 150 200 250 300 350 Number of People (millions) Which of the following suggestions would improve this chart in terms of helping the audience empathize with the data? Add a picture showing people who lack access to improved drinking water sources. Color each bar differently to create more excitement for the audience. Use a pie chart instead of a bar chart because pie charts create more empathy than bar charts due to use of preattentive attribute of shape. Use a three-dimensional (3D) bar chart because the depth dimension of a 3D chart moves an audience to feel more empathy. m