The ancient Egyptians, the civilization that flourished as early as 3000 B.C.E. in what is now Egypt, experienced a sudden decline around the 30 B.C.E., abandoning developed cities and agricultural systems. Recent research comparing wheat remains at Giza, an important city in Egypt, to samples from modern wheat populations in the Nile Delta region, found shared genetic markers appearing only after 30 B.C.E. This discovery suggested that ______13Mark for reviewAbcWhich choice most logically completes the text?Asome ancient Egyptians migrated to the Nile Delta region in the 30 B.C.E. and took their agricultural knowledge with them.Bconditions of the terrains in the Nile Delta region and Giza were more similar in the past than they are now.CEgyptian communities living in the Nile Delta region primarily hunted and gathered, and did not cultivate wheat before 30 B.C.E.Dthe ancient Egyptians of Giza likely learned agricultural practices from indigenous peoples living in other regions.