A student is preparing a speech on the migration of Alaskan caribou. The student's purpose is to inform others about the great distances caribou must migrate in order to obtain sources of food. Which visual aid will BEST support the author's purpose?
Aa map showing caribou migration
Ba visual of caribou herds migrating
Ca graphic of food sources for caribou
Da photograph of caribou herds eating
Aa map showing caribou migration
Ba visual of caribou herds migrating
Ca graphic of food sources for caribou
Da photograph of caribou herds eating