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Assume Sophia$$s budget constraint is represented in the graph shown. If Sophia$$s income is $$54,$ what are the prices of these two goods?

A protein bar costs $$4$ and a bagel costs $$6.$

A protein bar costs $$6$ and a bagel costs $$4.$

A protein bar costs $$4$ and a bagel costs $$4.$

A protein bar costs $$6$ and a bagel costs $$6.$