A GIS analyst has a point feature class of cities. The attribute table for this feature class contains fields for State_Name, Region_Name, and Population_2010. The layer is published to ArcGIS Online.
How should the analyst symbolize the data to show the region and population for each city point?
A. Choose to show the Region_Name attribute for the points > Types (Unique Symbols)
B. Choose two attributes to show > Region_Name for the first attribute, Population_2010 for the second > Types & Size
C. Choose two attributes to show > Region_Name for the first attribute, then an expression for the second > Types & Size 0
D. Choose to show the Population_2010 attribute for the points > Heat Map