The following sentences contain blanks. Use the drop-down menus to complete each blank correctly. The Atlantic Ocean borders Africa to the west, while the [Dropdown 1] Ocean borders Africa to the east. To the north lie the Mediterranean and Red Seas. Africa can be divided into two parts: North Africa and sub-Saharan Africa. Sub-Saharan Africa is organized into four regions [Dropdown 2] of the Sahara. Each region includes multiple countries. Three of the countries in East Africa are Tanzania, Djibouti, and [Dropdown 3] .