(1)The primary staples of the ancient Greek diet were the grains, known as the cereal grains.(2)The most important of the cereal grains was barley.(3)Although barely didn't have as high of a nutritional value as wheat, it was easier to cultivate than wheat.(4), because the amount of arable land near Athens was limited, the need for more farmland led to an increase in Greek colonization.

Which word would best be inserted at the beginning of sentence 4 to provide a clearer transition between ideas in this paragraph?

Additionally
However
Consequently
Similarly

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